Atoms, Ions, Isotopes, Avg Mass

The positive particles of an atom are ___________.

• electrons

• protons

• neutrons

• positrons

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

• nucleus

• electron cloud

• center

• orbitals

Tags

NGSS.HS-PS1-8

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

Tags

NGSS.MS-PS1-1

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?

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

• Proton

• Neutron

• Electron

• Quark

What does the 1.00794 stand for?

• Hydrogen
• atomic number
• atomic mass
• valence electrons

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

• 14
• 7
• 15
• 21

Tags

NGSS.HS-PS1-1

What is the atomic mass of "F"

• 9
• 28

• 18

• 19
• 10

Tags

NGSS.HS-PS1-1

Different isotopes have...

• different masses

• different protons

• different electrons

• different neutrons

• different atomic number

Tags

NGSS.HS-PS1-8