S25 IN CLASS: Valence Electrons & e config. Q

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical bonding.

Front

How many valence electrons does Sulfur have?

Back

Sulfur has 6 valence electrons.

Front

What is the electron configuration for Argon?

Back

1s² 2s² 2p⁶ 3s² 3p⁶.

Front

What is the maximum number of electrons in the first energy level?

Back

The maximum number of electrons in the first energy level is 2.

Front

What is the maximum number of electrons in the second energy level?

Back

The maximum number of electrons in the second energy level is 8.

Front

What is the significance of the octet rule?

Back

The octet rule states that atoms are most stable when they have 8 electrons in their valence shell.

Front

Which element has the electron configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d²?

Back

Zirconium (Zr).

Front

What determines the reactivity of an element?

Back

The reactivity of an element is determined by the number of valence electrons it has.

Front

What happens to an atom's reactivity as it approaches having 8 valence electrons?

Back

As an atom approaches having 8 valence electrons, its reactivity generally increases.

Front

What is the electron configuration for a neutral atom of Lithium?

Back

1s² 2s¹.