2.1 and 2.2 Biology

Smallest part of an element that still retains the properties of that element

• compound

• element

• proton

• atom

Subatomic particle with no charge

• proton

• neutron

• electron

• atom

Subatomic particle with a positive charge

• proton

• neutron

• electron

• atom

Subatomic particle that has a negative charge

• proton

• neutron

• electron

• atom

The type of bond formed when electrons are transferred from one atom to another

• chemical

• covalent

• ionic

• atomic

The type of bond formed when electrons are shared between two atoms

• ionic

• chemical

• atomic

• covalent

Which electrons are involved in bonding?

• Those closest to the nucleus

• Those in the nucleus

• The valence electrons

• The positive electrons

Atoms are neutral because they have the same number of

• protons and electrons

• protons and neutrons

• neutrons and electrons

• valence electrons

Two or more different atoms combined in a definite whole number ratio form a ________________.

• compound

• acid

• base

• ion

An atom that loses an electron has a _________ charge.

• negative

• neutral

• ionic

• positive