Geoscience Ch 4/5

What is unique for any given element?

• number of neutrons

• mass of a neutron

• the number of electrons

• the number of protons

What SAP has a negative charge?

• Proton

• Electron

• Neutron

• Positron

Which of the following is TRUE?

• Neutrons have no charge and no mass

• Electrons have no mass

• Electrons have a much smaller mass than protons or neutrons

• Protons, neutrons, and electrons all have no charge

An electron has a different amount of _________ at each level.

• Energy

• Power

• Force

• Mass

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

Protons and neutrons are found where?

• In the electron cloud

• In the energy shells

• In the nucleus

Tags

NGSS.HS-PS1-8

The number of protons is equal to what?

• The atomic mass

• The atomic number

• The number of protons

• The overall charge of the atom

How many neutrons are in an element with an atomic number of 12 and an atomic mass of 26?

• 12

• 26

• 38

• 14

Bohr models show electrons moving like

• balls rolling down a hill

• popcorn in a popcorn popper

• planets orbiting the sun

• beach balls on waves in water

The electron cloud model describes the ___________ location of electrons in an atom

• exact

• possible

• precise

• unknown

If a neutral atom has an atomic number 17 and an atomic mass of 30, how many electrons does it have?

• 17

• 30

• 13

• 47

Tags

NGSS.HS-PS1-1