The smallest piece of an element:

• quark

• electron

• shell

• atom

Protons and neutrons are found in the center of the atom called the:

• nucleus

• neutron

• shell

• cell

Tags

NGSS.MS-PS1-1

Substances that have only one kind of atom are called:

• elements

• nitrogen

• electrons

• nucleus

Electrons have a _____ charge.

• neutral

• negative

• positive

• both positive and negative

Tags

NGSS.MS-PS2-3

What is the sum of an atom's protons and neutrons called?

• atom

• atomic theory

• atomic mass

• atomic number

The _____ is based on the number of protons in the nucleus of the atom.

• atomic structure

• periodic table of the elements

• atomic number

• atomic mass

Label the atom with its correct parts.

a

b

c

d

e

Electron Shell

Neutron

Nucleus

Proton

Electron

Tags

NGSS.MS-PS1-1

How many protons are in an Oxygen atom?

• 8

• 15.999

• 16

• 0

Answer explanation

Remember APE MAN!

Atomic Number = # Protons = # Electrons

Tags

NGSS.MS-PS1-1

Label the parts of the Element Information.

a

b

c

d

Compound Symbol

Element Name

Element Symbol

Atomic Mass

Compound Name

Atomic Number

Tags

NGSS.MS-PS1-1

Water is made of the elements Hydrogen and Oxygen bonded together. It is a(n) _________.

• isotope

• nucleus

• compound

• element

Answer explanation

Compounds are substances made of 2 or more different elements bonded together.

Tags

NGSS.MS-PS1-1