Density & Atomic Structure C.F.A. Practice

All matter is made of what

• energy

• atoms

• electrons

• compounds

Tags

NGSS.MS-PS1-1

The positive particles of an atom are

• electrons

• neutrons

• protons

The central region of an atom where its neutrons and protons are is its

• nucleus

• electron cloud

• electron storm

• atom

Particles in an atom that are neutral and have no charge are

• negatrons

• electrons

• neutrons

• protons

Tags

NGSS.MS-PS1-1

True or False: Neutrons have a negative charge

• True

• False

What subatomic particles would you find in the nucleus of an atom?

• Protons only

• Protons and Neutrons

• Neutrons and Electrons

• Protons and Electrons

Tags

NGSS.MS-PS1-1

If an atom has 10 protons, 10 neutrons, and 10 electrons, what is the mass of the atom?

• 10

• 20

• 30

Tags

NGSS.MS-PS1-1

What subatomic particle(s) would be found orbiting the nucleus?

• Neutrons only

• Electrons only

• Protons and Neutrons

• Protons and Electrons

Tags

NGSS.MS-PS1-1

What particle uniquely identifies an element?

• Number of Valence Electrons

• Number of Protons

• Number of Electrons

• Atomic Mass

Most of the mass in an atom is concentrated in the...

• electrons

• nucleus

• protons

• empty space

Tags

NGSS.MS-PS1-1