Which of the following is NOT one of the eight most common elements in Earth’s continental crust?

carbon
silicon
oxygen
aluminum

The most abundant element in Earth’s continental crust (by weight) is _____.

2.

oxygen
silicon
calcium
iron

3. The central region of an atom is called the _____.

proton
electron
nucleus
neutron

4. If the atomic number of an element is 6 and its mass number is 14, how many neutrons are contained in the nucleus?

6
20
14
8

5. Isotopes of the same element differ in the number of _____.

protons
electrons
neutrons
nuclei

6. When two or more elements bond together in definite proportions, they form a(n) _____.

ion
atom
nucleus
compound

7. What type of chemical bond forms between positive and negative ions?

covalent
metallic
ionic
isotopic

8. What is the smallest particle of a covalent compound that shows the properties of that compound?

an ion
an atom
an element
a molecule

If you will repost and mark your answers with *** I shall be happy to check them. #1 is carbon.

1: A

2: A
3: C
4: D
5: C
6: D
7: C
8: D

U got all the answers right

I got an 8/8 100% for the answers above thank you.

1: A

2: A
3: C
4: D
5: C
6: D
7: C
8: D

1. The element that is NOT one of the eight most common elements in Earth's continental crust is carbon. (Clown response: Carbon must be feeling left out! It's not one of the popular kids in Earth's continental crust party.)

2. The most abundant element in Earth's continental crust (by weight) is oxygen. (Clown response: Oxygen takes the crown! It's the heavyweight champion of the continental crust.)

3. The central region of an atom is called the nucleus. (Clown response: The nucleus is where all the atom's secrets are held. It's the brain of the operation!)

4. If the atomic number of an element is 6 and its mass number is 14, there are 8 neutrons contained in the nucleus. (Clown response: It's a neutron party in the nucleus! 6 protons invited, 8 neutrons showed up.)

5. Isotopes of the same element differ in the number of neutrons. (Clown response: Neutrons are like the siblings of the atomic family. Each isotope can have a different number of these mischievous siblings.)

6. When two or more elements bond together in definite proportions, they form a compound. (Clown response: When elements get together, they don't do things half-heartedly. They form a chemical compound and become best buddies!)

7. The type of chemical bond that forms between positive and negative ions is ionic bonding. (Clown response: Positive ions and negative ions are like magnets. They attract each other and form an ionic bond that just can't be broken!)

8. The smallest particle of a covalent compound that shows the properties of that compound is a molecule. (Clown response: A molecule is like a tiny superhero with special powers. It represents the compound and shows off all its amazing properties!)

To answer these questions, let's go through each question one by one:

1. Which of the following is NOT one of the eight most common elements in Earth’s continental crust?

To find the answer, we need to know the eight most common elements in Earth's continental crust. You can find this information by doing a quick search online or referring to a reliable source such as a geology textbook or scientific journal. The most common elements are oxygen, silicon, aluminum, iron, calcium, sodium, potassium, and magnesium. By comparing this list to the options given, we can determine that carbon is NOT one of the eight most common elements in Earth's continental crust.

2. The most abundant element in Earth’s continental crust (by weight) is _____.

To find the answer, we need to know which element is the most abundant in Earth's continental crust. Again, you can find this information by searching online or referring to a reliable source. In this case, the correct answer is oxygen. The majority of Earth's crust is made up of oxygen, followed by silicon.

3. The central region of an atom is called the _____.

To answer this question, we need to know the basic structure of an atom. The central region of an atom is called the nucleus. The nucleus contains protons and neutrons, while electrons orbit around the nucleus.

4. If the atomic number of an element is 6 and its mass number is 14, how many neutrons are contained in the nucleus?

To determine the number of neutrons in the nucleus, we need to subtract the atomic number (number of protons) from the mass number. In this case, the atomic number is 6, so there are 6 protons. The mass number is 14, so there are 14 - 6 = 8 neutrons.

5. Isotopes of the same element differ in the number of _____.

Isotopes of the same element differ in the number of neutrons. Isotopes have the same number of protons (which determines the element) but different numbers of neutrons.

6. When two or more elements bond together in definite proportions, they form a(n) _____.

When two or more elements bond together in definite proportions, they form a compound. A compound is a substance made up of two or more different elements chemically bonded together.

7. What type of chemical bond forms between positive and negative ions?

The type of chemical bond that forms between positive and negative ions is an ionic bond. In an ionic bond, electrons are transferred from one atom to another, resulting in the formation of positively charged ions (cations) and negatively charged ions (anions) that are attracted to each other.

8. What is the smallest particle of a covalent compound that shows the properties of that compound?

The smallest particle of a covalent compound that shows the properties of that compound is a molecule. In a covalent bond, atoms share electrons, forming molecules. A molecule is the smallest particle of a covalent compound that can exist independently and retain the properties of the compound.