Chemistry and Matter

Which has a positive charge?

• nucleus
• neutron
• proton
• electron

Which has a negative charge?

• nucleus

• neutron

• electron

• proton

How many protons does an atom of fluorine have?

• 9

• 10

• 19

• 28

If an atom of carbon has 6 protons and a mass of 13, how many neutrons would that atom have?

• 6

• 7

• 13

• 19

How is the periodic table organized or arranged?

• alphabetically

• date of discovery

• atomic mass

• atomic number

What are the three states of matter?

• solid, volume, mass
• density, volume, mass
• solid, liquid, gas
• density, gas, volume

Tags

NGSS.MS-PS1-4

What is the density of a liquid if its volume is 125 mL and its mass is 50 g?

• 2.5 g/mL

• 175 g/mL

• 0.4 g/mL

• 6250 g/mL

When rain freezes and turns to ice or sleet, this is an example of a

• physical property

• chemical property

• physical change

• chemical change

Tags

NGSS.MS-PS1-4

Which state of matter has an indefinite shape and a definite volume?

• liquid

• solid

• gas

• plasma

Which state of matter has an indefinite shape and an indefinite volume?

• liquid

• solid

• gas

• plasma