Unit 1 Atoms Review

The positive particles of an atom are ___________.

• electrons

• protons

• neutrons

Tags

NGSS.MS-PS1-1

The center of an atom where its neutrons and protons are is called the _____________.

• nucleus

• electron cloud

• center

Tags

NGSS.HS-PS1-8

An atom with atomic number 6 would have how many protons?

• 6

• 12

• 3

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

• protons

• electrons

• neutrons

What is the atomic number for an element with three protons?

• 6

• 1

• 3

A particle that moves around the nucleus is called an _________.

• Proton

• Neutron

• Electron

• Quark

In the modern periodic table elements are arranged by:

• atomic mass
• atomic number
• valence electrons
• number of isotopes

What is the number of protons that the element in this image contain?

• 14
• 7
• 15
• 18

Tags

NGSS.MS-PS1-1

What is the atomic mass of "F"

• 9
• 18
• 17
• 19

Tags

NGSS.MS-PS1-1

How many protons are in an atom of carbon?

• 12.01
• 8
• 6
• 14

Tags

NGSS.MS-PS1-1