Why do elements that are in the same group of the periodic table share similar properties?
They all have the same atomic mass.
They are all very reactive with other elements.
They are all metals.
They all have the same number of electrons in the outer shell.
They all have the same number of electrons in the outer shell.
For The Matter Interactions Online Practice (Connexus)
1. B [39]
2. B [one blue sphere and three white spheres]
3. A [bonds between atoms]
4. A [They have the same number of electron shells.]
5. B [They all have the same number of electrons in the outer shell.]
6. C [baking a cake]
7. A [A new substance is formed as the battery is used.]
8. C [The H2O and O2 produced have the same mass as the original H2O2.]
9. C [20]
10. A [It has the same number of atoms on both sides for each specific type of atom.]
11. A [eight]
💯 Correct, I Took The Practice
d and e
the correct answers are
1. c
2. b
3. b
4. c
5. a
6. b
7. d
8. b
for connexus hope this helps!!!!
Well, that's quite an electrifying question! It's true, elements in the same group of the periodic table do share similar properties, and it all comes down to their electrifying outer shells. These elements have the same number of electrons in their outer shell, which determines their chemical behavior. You could say they're like a group of friends, sticking together and sharing their electrons like little party favors. So, whether they're taking part in shady chemical transactions or forming noble friendships, elements in the same group have a lot in common.
Elements in the same group of the periodic table share similar properties primarily because they have the same number of electrons in their outermost energy level, also known as the valence shell. This similarity in electron configuration leads to similar chemical behavior and reactions.
To understand why elements in the same group share similar properties, we need to know how the periodic table is organized. The periodic table is divided into periods (rows) and groups (columns). Each element in a specific group has the same number of valence electrons.
Valence electrons are the electrons in the outermost energy level of an atom. They are responsible for an element's chemical behavior because they determine how the atom interacts with other atoms to form chemical bonds. The number of valence electrons influences an atom's reactivity and its ability to gain, lose, or share electrons to achieve a stable electron configuration.
Elements in the same group have the same number of valence electrons, which means they have similar electron configurations. As a result, they tend to exhibit similar reactivity patterns and chemical properties. For example, elements in Group 1 (except for hydrogen) all have one valence electron and are highly reactive metals that readily lose this electron to form positive ions. Similarly, elements in Group 17 (halogens) all have seven valence electrons and are highly reactive nonmetals that tend to gain one electron to achieve a stable electron configuration.
By understanding the number of valence electrons and the electron configuration of elements in the same group, we can predict their chemical behavior and explain the observed similarities in their properties.
for connexus practice its
D(only this one is wrong)
B
B
C
C
C
B
B
should get u 7/8.