Valence Electron Practice

Front

What are valence electrons?

Back

Valence electrons are the electrons that are farthest away from the nucleus of an atom and are involved in chemical bonding.

Front

Which groups of the periodic table are the most reactive nonmetals?

Back

Groups 16 and 17 are the most reactive nonmetals.

Front

How many valence electrons does hydrogen need to be stable?

Back

Hydrogen needs 2 electrons in its valence shell to be stable.

Front

What group has the greatest number of valence electrons?

Back

Group 18 has the greatest number of valence electrons.

Front

How many electrons do most atoms prefer in their valence shell for stability?

Back

Most atoms prefer 8 electrons in their valence shell for stability.

Front

What is the significance of valence electrons in chemical reactions?

Back

Valence electrons determine how an atom will bond with other atoms and its reactivity.

Front

What is the octet rule?

Back

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

Front

Which elements are considered noble gases?

Back

Noble gases are elements in Group 18, such as helium, neon, and argon, which have full valence shells.

Front

What happens to an atom when it gains or loses valence electrons?

Back

When an atom gains or loses valence electrons, it becomes an ion and can participate in ionic bonding.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons between atoms, while covalent bonds involve the sharing of electrons.