Unit One Atoms

What is the atomic number?

• the number of protons
• the number of protons and neutrons
• the number of neutrons
• the number of protons and electrons

What is the atomic number of this nucleus?

• 1
• 3
• 4
• 7

Tags

NGSS.MS-PS1-1

What is the atomic number of this atom?

• 4
• 5
• 9
• none of the above

Tags

NGSS.MS-PS1-1

What is the atomic number of this atom?

• 9
• 10
• 19
• 27

Tags

NGSS.MS-PS1-1

What is the atomic number of this atom?

• 2
• 4
• 6
• none of the above

Tags

NGSS.MS-PS1-1

Which particle has a positive charge?

• electron
• orbital
• proton
• neutron

This particle determines what element you have - the elements identity.

• electron
• proton
• neutron
• valence shell

Tags

NGSS.MS-PS1-5

The atomic number of Titanium (Ti) is

• 22

• 23

• 20

• 24

The atomic number of Hydrogen (H) is

• 1

• 2

• 3

• 4

The atomic number of Lithium (Li) is

• 3

• 4

• 5

• 6