f24 midterm exam

Front

What atomic particle determines the element?

Back

Protons are the atomic particles that determine the identity of an element.

Front

Which element will form a cation?

Back

Barium will form a cation as it loses electrons.

Front

How many valence electrons do atoms in group 16 have?

Back

Atoms in group 16 have 6 valence electrons.

Front

What is the name of the ionic compound SnSe2?

Back

The ionic compound SnSe2 is called Tin (IV) Selenide.

Front

What is a valence electron?

Back

A valence electron is an electron in the outermost orbital of an atom.

Front

What is the charge of a cation?

Back

A cation has a positive charge.

Front

What is the charge of an anion?

Back

An anion has a negative charge.

Front

What is the significance of protons in an atom?

Back

Protons determine the atomic number and identity of an element.

Front

What is the difference between ionic and covalent bonds?

Back

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

Front

What is the octet rule?

Back

The octet rule states that atoms tend to gain, lose, or share electrons to achieve a full outer shell of 8 electrons.