Theory of Atoms 19- 20

What is the location of the electron?

• the free floating negatively charged electron cloud
• the free floating positively charged electron cloud
• the very dense positively charged electron orbital
• the positively charged very dense nucleus

Tags

NGSS.MS-PS1-1

What is the charge of the electron

• positive
• no charge
• negative
• neutral

Tags

NGSS.MS-PS2-3

What is the relative mass of the electron

• same mass as proton
• larger mass than protons and neutrons
• less than 1amu
• electrons don't have a mass

How many electrons does an atom with 8 protons have?

• 8
• 16
• 15.99
• 24

Tags

NGSS.MS-PS1-1

Where is the proton located?

• In the very dense nucleus
• Floating around in the negative electron cloud
• the loose nucleus
• the positive electron cloud

Tags

NGSS.MS-PS1-1

Sodium has an atomic number of 11, how many protons does this atom have?

• 22
• 11
• 12
• 2

Tags

NGSS.MS-PS1-1

The following element key shows how many protons?

• 16
• 15.999
• Oxygen
• 8

Tags

NGSS.MS-PS1-1

Protons are equal to:

• Atomic Mass
• Number of neutrons
• Atomic Number
• All of the subatomic particles

What is the mass of a neutron?

• 1 amu
• 0 amu
• same as electron
• doesn't have any mass

Where is the neutron located?

• In the loose nucleus with the electron
• In the dense nucleus with the protons
• In the electron cloud
• The nucleus floats on orbitals

Tags

NGSS.MS-PS1-1