summer science ( chemistry )

what are the three particles that make up an atom ?

• proton , hydrogen , neutron

• hydrogen , helium , carbon

• positive , negative , neutral

• proton , neutron , electron

what is the melting point of what in F & C

what is the charge of a proton ?

• neutral

• positive

• negative

what charge does an electron have ?

• negative

• postive

• neutral

• rainbows

Tags

NGSS.MS-PS2-3

what is the charge of a neutron ?

• positive

• negative

• neutral

• teal

what is an element ?

• an element is a pure substance that can't be chemically broken down

• an element is a natural substance that you can find in nature

• an element is the things you need to bake a cake

• an element is a part or aspect of a molecule

a gas substance as fast moving particles that float around

• true

• false

Tags

NGSS.MS-PS1-4

a solid substance has ....

• slower moving particles

• 1,080 mph moving particles

• still particles

• slightly vibrating particles

Tags

NGSS.MS-PS1-4

the melting point and the freezing point are the same thing

• true

• false

Tags

NGSS.MS-PS1-4

how many protons and electrons does helium have ?

• 1

• 12

• 2

• 6