Unit 1 Matter review

Subatomic particles with a negative charge

• Electrons

• Neutrons

• Protons

• Quarks

Tags

NGSS.MS-PS2-3

Subatomic particles with a positive charge

• neutrons
• atomic mass
• protons
• isotopes

Value representing the number of protons in an element

• Atomic Mass
• Mass Number
• Valence Electrons
• Atomic Number

Subatomic particles that are neutral in charge

• Neutrons
• Protons
• Nucleus 
• Electrons

A tiny but very dense, positively charged portion of the atom that holds most of the atomic mass

• Electron Shells
• Orbitals
• Electron Cloud
• Nucleus

What is the atomic mass of Neon?

• 10

• 20

• 30

Which two subatomic particles make up the nucleus of an atom?

• Protons and Electrons
• Neutrons and Electrons
• Electrons and Protons
• Protons and Neutrons

Tags

NGSS.MS-PS1-1

At what part of the atom is the arrow pointing?

• nucleus

• energy level

• electron

• proton

Tags

NGSS.MS-PS1-1

How many valence electrons?

• 2

• 4

• 6

• 8

Tags

NGSS.MS-PS1-1

On the periodic table, Groups are

• Horizontal rows

• Vertical columns