Atomic Structure, Isotopes, & Atomic Mass

How many electrons does an uncharged (neutral) atom if neon have?

• 9

• 10

• 8

• 11

Tags

NGSS.MS-PS1-1

True or False: Neutrons have a negative charge.

• True

• False

What is an isotope?

• Two atoms of the same element with different numbers of protons

• A charged atom

• A neutral atom

• Two atoms of the same element with different numbers of neutrons

How many neutrons does this isotope of lithium have?

• 3

• 4

• 8

• 5

Tags

NGSS.MS-PS1-1

What is defined as one twelfth the mass of a carbon-12 atom?

• Atomic mass

• Atomic number

• Mass number

• Number of neutrons

Particles in an atom that are have no charge are

• Protons

• Electrons

• Neutrons

• Negatrons

Tags

NGSS.MS-PS1-1

What is the atomic number for an element with 3 protons?

• 2

• 3

• 6

• 1

What quantities vary between isotopes of an element?

• Neutrons and mass number

• Neutrons and electrons

• Protons, electrons, and atomic number

• Protons, electrons, and atomic mass

Tags

NGSS.HS-PS1-8

A neutral atom with atomic number 6 would have how many electrons?

• 3

• 6

• 1

• 2

Tags

NGSS.MS-PS1-1

The positive particles of an atom are

• Protons

• Electrons

• Positrons

• Neutrons