CH 2 REVIEW (Ac Bio)

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 atom?

• 4
• 5
• 9
• 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

What is the atomic mass of Neon?

• 10
• 20.18
• 10.18
• 20.18

How many protons are in Beryllium?

• 4
• 9
• 5
• 2

Tags

NGSS.MS-PS1-1

How many neutrons are in a Gold atom?

• 79
• 196
• 118
• 275

Tags

NGSS.MS-PS1-1

How many electrons does an Iodine atom have?

• 53
• 126
• 73
• 179

Tags

NGSS.MS-PS1-1

What is this number representing?

• Number of protons
• Number of Protons and Electrons
• Number of Protons and Neutrons
• Number of Electrons, Protons and Neutrons

The four most common elements in living organisms are

• C, H, O, Fe

• C, H, O, Na

• C, H, O, N

• C, N, O, Na