Chapter 4, Earth Chemistry

Front

The weighted average of the atomic masses of an elements naturally occurring isotopes is...

Back

average atomic mass

Front

Isotopes have the same number of protons but different number of...

Back

neutrons

Front

Mass number is the sum of...

Back

protons and neutrons

Front

How many atoms of sodium, Na, are in NaCl?

Back

1

Front

What does the "2" mean in the formula for water, H₂O?

Back

2 hydrogen atoms

Front

What are two ways electrons in atoms form chemical bonds?

Back

transferring and sharing electrons

Front

Which subatomic particles make up the nucleus? Options: protons and electrons, neutrons and electrons, protons and neutrons, just protons

Back

protons and neutrons

Front

Where in an atom can electrons be found? Options: in the nucleus cloud, in the proton, in the electron cloud, in the nucleus

Back

in the electron cloud

Front

Two types of bonds are...

Back

ionic and covalent

Front

What is matter?

Back

Any substance that takes up space and has mass.