Bohr and Lewis Dot Models

These particles are found in the nucleus of the atom.

• protons only

• protons and electrons

• electrons only

• protons and neutrons

Tags

NGSS.HS-PS1-8

The mass number is the total of the protons plus the neutrons in the atom.

• True

• False

Tags

NGSS.HS-PS1-8

How many neutrons would you expect the average gold atom to have given the information shown?

• 79

• 118

• 197

• 276

Tags

NGSS.HS-PS1-8

Which subatomic particle has a negative charge?

• proton

• electron

• neutron

• quark

The section labeled D is known as the?

• Electron cloud
• Neutron
• Nucleus
• Electron

Tags

NGSS.HS-PS1-8

Value representing the number of protons in an element

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

What is the atomic number of this atom?

• 2
• 4
• 6
• none of the above

Tags

NGSS.HS-PS1-1

What is the mass number of this atom?

• 1
• 3
• 4
• 7

Tags

NGSS.MS-PS1-1

Name this element.

• Neon

• Magnesium

• Sodium

• Manganese

Tags

NGSS.HS-PS1-1

An element will always have the same number of 

• neutrons
• protons
• isotopes
• atoms