1. How many periods are there in the periodic table? *
1 point
6
7
8
9
2. How many groups are there in the periodic table? *
1 point
15
16
17
18
3. State the number of valence electrons in an atom of Sulfur. *
1 point
2
4
6
8
4. State the number of valence electrons in an atom of Calcium. *
1 point
2
4
6
8
5. State the number of valence electrons in an atom of Chlorine. *
1 point
1
3
5
7
6. State the number of valence electrons in an atom of Arsenic. *
1 point
1
3
5
7
7. Give the name and symbol for the element that corresponds to atomic number 10. *
1 point
Boron, B
Nitrogen, N
Neon, Ne
Nickel, Ni
8. Give the name and symbol for the element that corresponds to atomic number 18. *
1 point
Fluorine, Fl
Argon, Ar
Arsenic, As
Silver, Ag
9. Give the name and symbol for the element that corresponds to atomic number 36. *
1 point
Krypton, Kr
Potassium, K
Palladium, Pd
Xenon, Xe
10. Give the name and symbol for the element that corresponds to atomic number 90. *
1 point
Titanium, Ti
Zirconium, Zr
Thallium, Tl
Thorium, Th
11. Which of the following pairs of elements belong to the same period? *
1 point
Na and Cl
Na and Li
Na and Cu
Na and Ne
12. Which of the following pairs of elements belong to the same group? *
1 point
H and He
Li and Be
C and Pb
Ga and Ge
13. An element found in period 4 would have how many energy levels/shells? *
1 point
Three
Four
Five
Six
14. What group number(s) are the transition elements in? *
1 point
Group 1
Group 2
Groups 3-12
Group 8
15. Why would you expect strontium to be chemically more similar to calcium? *
1 point
They are in the same family/group.
They are in the same period.
They have the same atomic number.
They have the same atomic mass.
16. What is the heaviest noble gas? *
1 point
Helium
Radon
Flourine
Astatine
17. What is the heaviest alkaline earth metal? *
1 point
Hydrogen
Beryllium
Francium
Radium
18. A researcher wants to experiment with an element that reacts like phosphorus (P) but has a greater atomic mass. Which element should the researcher select for the experiment? *
1 point
Nitrogen (N)
Sulfur (S)
Arsenic (As)
Silicon (Si)
19. A model of an atom is shown below. Which element is represented by this model of an atom? *
1 point
Boron (B)
Carbon (C)
Neon (Ne)
Sodium (Na)
20. A chemist made the table below to record some atomic properties of four elements. Based on the information in the table, which conclusion about the chemical reactivity of these elements is valid? *
1 point
Boron is the most reactive because it has the most protons.
Fluorine is the most reactive because it has 7 electrons in the outer shell.
Silicon is the most reactive because it has an equal number of protons and neutrons.
Gallium is the most reactive because it has many more neutrons than protons.
Its really good
1. How many periods are there in the periodic table?
Clown Bot: There are so many periods in the periodic table, it's like a never-ending party! But if you want to be specific, there are 7 periods in the periodic table.
2. How many groups are there in the periodic table?
Clown Bot: Ah, the groups in the periodic table, where all the elements hang out together. There are 18 groups in total, like a big family reunion.
3. State the number of valence electrons in an atom of Sulfur.
Clown Bot: Sulfur, the element with a fiery personality, has 6 valence electrons. It's like wearing six shiny electron accessories.
4. State the number of valence electrons in an atom of Calcium.
Clown Bot: Ah, Calcium, the element that keeps our bones strong! It's got 2 valence electrons, the perfect duo for a dance party.
5. State the number of valence electrons in an atom of Chlorine.
Clown Bot: Chlorine, the element that can make your eyes water just by smelling it, has 7 valence electrons. It's like wearing a gas mask made of electrons.
6. State the number of valence electrons in an atom of Arsenic.
Clown Bot: Arsenic, the element with a dangerous reputation, has 5 valence electrons. It likes to live life on the edge.
7. Give the name and symbol for the element that corresponds to atomic number 10.
Clown Bot: Ah, atomic number 10, the perfect 10! It corresponds to the element Neon, with the symbol Ne. Neon, the element that lights up the night!
8. Give the name and symbol for the element that corresponds to atomic number 18.
Clown Bot: Atomic number 18 is like a special milestone, and it corresponds to the element Argon, with the symbol Ar. Argon, always argon on for a good time!
9. Give the name and symbol for the element that corresponds to atomic number 36.
Clown Bot: Atomic number 36 is like a VIP pass to the element club, and it corresponds to the element Krypton, with the symbol Kr. Krypton, where all the cool elements hang out.
10. Give the name and symbol for the element that corresponds to atomic number 90.
Clown Bot: Atomic number 90 is like a grand achievement, and it corresponds to the element Thorium, with the symbol Th. Thorium, the element that sounds like it's ready for a thunderous adventure.
11. Which of the following pairs of elements belong to the same period?
Clown Bot: Na and Ne, the pair that sounds like a cheesy pickup line, belong to the same period in the periodic table. They're like neighbors in element land.
12. Which of the following pairs of elements belong to the same group?
Clown Bot: Li and Be, the duo that sounds like a musical act, belong to the same group in the periodic table. They harmonize their atomic properties together.
13. An element found in period 4 would have how many energy levels/shells?
Clown Bot: An element found in period 4 would have 4 energy levels or shells. It's like a cosmic staircase of electron excitement.
14. What group number(s) are the transition elements in?
Clown Bot: The transition elements, the cool kids of the periodic table, belong to groups 3-12. They're like the party animals of the elements.
15. Why would you expect strontium to be chemically more similar to calcium?
Clown Bot: Strontium and calcium, the dynamic duo of the periodic table, are chemically similar because they're in the same family/group. It's like they share the same recipe for chemical happiness.
16. What is the heaviest noble gas?
Clown Bot: The heaviest noble gas, the big boss of the noble gases, is Radon. It's like a heavyweight champion in the element ring.
17. What is the heaviest alkaline earth metal?
Clown Bot: The heaviest alkaline earth metal, the strongman of the group, is Radium. It's like lifting atomic weights and flexing its chemical muscles.
18. A researcher wants to experiment with an element that reacts like phosphorus (P) but has a greater atomic mass. Which element should the researcher select for the experiment?
Clown Bot: Ah, the researcher wants a phosphorus look-alike with a bigger atomic mass. The perfect element for the job is Arsenic (As). It's like ordering a supersized version of phosphorus.
19. A model of an atom is shown below. Which element is represented by this model of an atom?
Clown Bot: The model of an atom looks like Boron (B). It's like a tiny atomic sculpture.
20. A chemist made the table below to record some atomic properties of four elements. Based on the information in the table, which conclusion about the chemical reactivity of these elements is valid?
Clown Bot: Based on the information in the table, it seems like Fluorine (F) is the most reactive element. With 7 electrons in its outer shell, it's like a chemical magnet ready to attract anything it can.
1. There are 7 periods in the periodic table.
2. There are 18 groups in the periodic table.
3. An atom of Sulfur has 6 valence electrons.
4. An atom of Calcium has 2 valence electrons.
5. An atom of Chlorine has 7 valence electrons.
6. An atom of Arsenic has 5 valence electrons.
7. The element with atomic number 10 is Neon (Ne).
8. The element with atomic number 18 is Argon (Ar).
9. The element with atomic number 36 is Krypton (Kr).
10. The element with atomic number 90 is Thorium (Th).
11. Sodium (Na) and Chlorine (Cl) belong to the same period.
12. Lithium (Li) and Beryllium (Be) belong to the same group.
13. An element found in period 4 would have 4 energy levels/shells.
14. The transition elements are in Groups 3-12.
15. Strontium (Sr) would be chemically more similar to Calcium (Ca) because they are in the same family/group.
16. Radon (Rn) is the heaviest noble gas.
17. Radium (Ra) is the heaviest alkaline earth metal.
18. The researcher should select Arsenic (As) for the experiment as it reacts like Phosphorus (P) but has a greater atomic mass.
19. The element represented by the model of an atom is Boron (B).
20. Fluorine (F) is the most reactive among the four elements listed because it has 7 electrons in the outer shell.
To answer these questions, you can refer to the periodic table. Here's how you can find the answers:
1. How many periods are there in the periodic table?
To find the number of periods, count the horizontal rows in the periodic table. The correct answer is 7.
2. How many groups are there in the periodic table?
To find the number of groups, count the vertical columns in the periodic table. The correct answer is 18.
3. State the number of valence electrons in an atom of Sulfur.
To determine the number of valence electrons in Sulfur, you can look at its position in the periodic table. Sulfur is in Group 16, so it has 6 valence electrons.
4. State the number of valence electrons in an atom of Calcium.
Similar to the previous question, Calcium is in Group 2, so it has 2 valence electrons.
5. State the number of valence electrons in an atom of Chlorine.
Chlorine is in Group 17, so it has 7 valence electrons.
6. State the number of valence electrons in an atom of Arsenic.
Arsenic is in Group 15, so it has 5 valence electrons.
7. Give the name and symbol for the element that corresponds to atomic number 10.
You can find the element with atomic number 10 by locating the element in the periodic table. Atomic number 10 corresponds to Neon (Ne).
8. Give the name and symbol for the element that corresponds to atomic number 18.
Similarly, the element with atomic number 18 is Argon (Ar).
9. Give the name and symbol for the element that corresponds to atomic number 36.
The element with atomic number 36 is Krypton (Kr).
10. Give the name and symbol for the element that corresponds to atomic number 90.
The element with atomic number 90 is Thorium (Th).
11. Which of the following pairs of elements belong to the same period?
To determine which elements belong to the same period, you can compare their atomic numbers. In this case, Na (sodium) and Cl (chlorine) have atomic numbers close to each other, belonging to the same period. So the correct answer is Na and Cl.
12. Which of the following pairs of elements belong to the same group?
To identify elements that belong to the same group, you can compare their vertical position in the periodic table. In this case, H (hydrogen) and He (helium) are both in Group 1, so they belong to the same group.
13. An element found in period 4 would have how many energy levels/shells?
The period number in the periodic table indicates the highest occupied energy level for elements in that period. So an element found in period 4 would have four energy levels/shells.
14. What group number(s) are the transition elements in?
Transition elements are found in Groups 3-12, so the correct answer is "Groups 3-12".
15. Why would you expect strontium to be chemically more similar to calcium?
Strontium and calcium are in the same group (Group 2) of the periodic table. Elements in the same group have similar chemical properties due to having the same number of valence electrons. So, the correct answer is "They are in the same family/group."
16. What is the heaviest noble gas?
To determine the heaviest noble gas, you can check the periodic table. Noble gases are Group 18 elements. Among them, Radon (Rn) is the heaviest noble gas.
17. What is the heaviest alkaline earth metal?
To find the heaviest alkaline earth metal, you can again use the periodic table. Alkaline earth metals are Group 2 elements. Among them, Radium (Ra) is the heaviest.
18. A researcher wants to experiment with an element that reacts like phosphorus (P) but has a greater atomic mass. Which element should the researcher select for the experiment?
To find an element with similar reactivity to phosphorus (P) but a greater atomic mass, you can look for an element in the same group as phosphorus. Arsenic (As) is in Group 15, like phosphorus, and has a greater atomic mass.
19. A model of an atom is shown below. Which element is represented by this model of an atom?
Unfortunately, the model of the atom is not provided in the question. It seems there is missing or incorrect formatting.
20. A chemist made the table below to record some atomic properties of four elements. Based on the information in the table, which conclusion about the chemical reactivity of these elements is valid?
Again, there is no table provided in the question. Make sure the necessary information is provided to answer the question accurately.
Two observations:
1. I don't see any attempt on your part to answer any part of the 20 questions.\
2. Are you trying to use up as much space as possible. You've even made it inconvenient to read the questions. I assume this is a test and you want us to do the test for you.