8th Grade Unit 4

What is the process, seen in the sun in which hydrogen nuclei combine into helium and release energy?

• radioactivity

• nuclear fusion

• combustion

• nuclear fission

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

What are the elements that are on the far right of the periodic table?

• metallions

• metals

• metalloids

• nonmetals

Which process is used by nuclear power plants to produce energy?

• nuclear fusion

• wind energy

• nuclear fission

• hydroelectric

Tags

NGSS.HS-PS1-8

Writing a substance out using the chemical symbols is known as what?

• shorthand

• chemical formula

• chemical symbols

What type of bond occurs with metals and nonmetals?

• ionic

• metallic

• covalent

• it doesn't bond

How many electrons do the halogens need to become full?

• 8

• 6

• 1

• 2

How many oxygen are in this formula?

• 6

• 24

• 12

• 18

Tags

NGSS.MS-PS1-1

What is an advantage of nuclear power?

• it never has accidents

• in is easy to dispose of waste

• it has no air pollution

• it is inexpensive to build the plants

Tags

NGSS.HS-ETS1-3

What is good at gaining electrons?

• metals

• nonmetals

• metalloids

What equally gains and loses electrons?

• metals

• nonmetals

• metalloids