Chemistry Semester Exam 1

An atom with an atomic number of 8 has 8 protons.

• True

• False

Tags

NGSS.MS-PS1-1

Ions of an element have the same number of protons but different numbers of neutrons.

• True

• False

Electrons in an atom are arranged in the nucleus.

• True

• False

The atomic radius generally decreases across a period in the periodic table.

• True

• False

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Metalloids are found only on the left side of the periodic table.

• True

• False

Covalent bonds form between metals and nonmetals.

• True

• False

Covalent bonds involve the transfer of electrons from one atom to another.

• True

• False

A molecule with a polar covalent bond has an unequal sharing of electrons.

• True

• False

Tags

NGSS.HS-PS1-1

A liquid at room temperature has no definite shape and volume.

• True

• False

Tags

NGSS.MS-PS1-4

The process of a solid changing directly to a gas is called condensation.

• True

• False