Biology Ch 2 Chemistry in Life

An atom is the smallest unit of an element that retains the properties of that element.

• True

• False

An isotope is an atom with a different number of neutrons than the standard atom.

• True

• False

Tags

NGSS.HS-PS1-8

The mass number represents the number of protons and electrons.

• True

• False

The neutrons are the only subatomic particles with no mass.

• True

• False

A _____________ has two or more atoms bonded together.

• compound

• molecule

• element

• ion

Tags

NGSS.MS-PS1-1

A ________________ has two or more elements bonded together.

• compound

• molecule

• element

• ion

Tags

NGSS.MS-PS1-1

Which of these is not a subatomic particle?

• electron

• proton

• neutron

• photon

Tags

NGSS.5-PS1-1

Which of these is not considered to be a biomolecule?

• protein

• carbohydrate

• salt

• lipid

If the activation energy is to be lowered, a(n) _________________ can be used.

• isotope

• carbohydrate

• catalyst

• catalase

Tags

NGSS.HS-PS1-4

The subatomic particle with a negative charge is a(n) ____________________.

• proton

• electron

• photon

• neutron