Atoms, Elements, Compounds, and Mixtures TEST

What type of charge does a proton have?

• negative

• positive

• no charge/neutral

What type of charge does an electron have?

• positive

• no charge/neutral

• negative

Tags

NGSS.MS-PS2-3

What is the center of the atom called?

• nucleus

• electron cloud

• energy level

• neutron

Tags

NGSS.MS-PS1-1

What two sub-atomic particles belong in the nucleus of an atom?

• electrons and protons

• protons and neutrons

• electrons and neutrons

Tags

NGSS.MS-PS1-1

How do you find the atomic number?

• by the number of electrons

• by the number of protons

• by the number of neutrons

What type of charge does a neutron have?

• negative

• positive

• no charge/neutral

What is the element symbol?

• Argon

• Ar

• 18

• 39.948

Tags

NGSS.MS-PS1-1

What is the element name?

• Argon

• Neon

• 18

• Ar

Tags

NGSS.MS-PS1-1

The number 18 represents the

• Atomic number

• Neutrons

• Element Name

• Element symbol

Tags

NGSS.MS-PS1-1

The mass number of an atom =

• protons + neutrons

• protons - neutrons

• electrons - neutrons

• neutrons + electrons