Chapter 2- no macromolecules

There are ___________ different kinds of atoms

• 110

• 118

• 119

• 120

The three subatomic particles include

• protons

• electrons

• neutrons

• goodtrons

What subatomic particles are found in the nucleus of atom?

• protons and electrons

• protons and neutrons

• electrons and neutrons

• neutrons only

Why are electrons not added into the weight of an atom?

• can't do the math for it

• they have never been seen before

• to light

• to heavy

What subatomic particle has a neutral charge?

• protons

• electron

• neutrons

• all of the above

The most common elements in the human body include

• N and O

• N and O and C

• N and O and C and H

• Gold

An element has 14 electrons, 20 neutrons, and 14 protons, its total weight is

• 34

• 28

• 6

• 48

The atomic number of an element tells you

• protons only

• electrons only

• neutrons only

• protons and electrons

Gas changing to a liquid is called

• condensation

• sublimation

• freezing

• frost formation

Solid to a liquid is called

• freezing

• sublimation

• melting

• condensation