Chapter 2 Review and Vocab (Chemistry of Life)

Front

Democritus' term for the smallest unit of matter.

Back

atom

Front

What binds protons and neutrons?

Back

nucleus

Front

Proton has a ___________ charge.

Back

positive

Front

Electrons are in motion around the nucleus.

Back

True

Front

Max e- in 1st orbital?

Back

2

Front

Max e- in 2nd orbital is 9.

Back

False

Front

A pure substance made of one type of atom.

Back

element

Front

In isotopes, atomic mass changes due to:

Back

An increase in neutrons.

Front

Chemical properties of isotopes remain the same.

Back

True

Front

A substance formed by the chemical combination of two or more elements in definite proportions.

Back

compound