APE MAN and Atoms

Atomic number is ALWAYS equal to the number of

• protons

• protons + neutrons

• neutrons

• protons + electrons

Mass number is:

• protons

• protons + neutrons

• an average mass

• protons + electrons

Atomic Mass is:

• protons

• protons + neutrons

• an average mass

• protons + electrons

What does the 1.00794 stand for?

• Mass number

• Atomic number

• Atomic mass

Tags

NGSS.MS-PS1-1

What does the 1 represent? Choose 2 correct answers.

• Mass number

• Atomic number

• Atomic mass

• Proton number

• Neutron number

Tags

NGSS.MS-PS1-1

Determine the atomic number and mass number of this atom:

• atomic number=27

  mass number =13

• atomic number=13

  mass number =27

• atomic number=13

  mass number =40

Tags

NGSS.MS-PS1-1

Determine the number of protons, neutrons and electrons:

• p=13

  e=13

  n=13

• p=13

  e=13

  n=27

• p=13

  e=13

  n=14

Tags

NGSS.MS-PS1-1

What is the correct hyphen symbol?

• Al - 27

• Al - 13

• Al - 14

Which is the correct Atomic Mass for this atom?

• 27

• 26.982

• 14

Tags

NGSS.MS-PS1-1

What is the atomic number of this atom?

• 2

• 4

• 6

Tags

NGSS.MS-PS1-1