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Matter Test: Particles and Properties

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Questions and Answers

What is the center of an atom usually made of?

Protons and positrons

Protons and electrons

Electrons and neutrons

Protons and neutrons (correct)

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

Plasma

Solid (correct)

Liquid

Gas

What happens to the mass when you grind a board down to sawdust?

A little less than 750 grams

More than 750 grams

Much less than 750 grams

Exactly 750 grams (correct)

Which statement is true when comparing the thermal energy of water in a teacup and a bathtub?

The water in the bathtub has more thermal energy Signup and view all the answers

Which state of matter has no definite shape and no definite volume?

Gas Signup and view all the answers

How is the element with atomic number 42 different from the element with atomic number 41?

It has one more proton Signup and view all the answers

Which subatomic particle has a positive electrical charge?

Proton Signup and view all the answers

What is the smallest unit of an element that still has the properties of that element?

Atom Signup and view all the answers

What is the term used to describe the amount of mass something has in relation to its volume?

Density Signup and view all the answers

What is the term for the number of protons in an atom?

Atomic Number Signup and view all the answers

A substance made up of only one kind of atom is called a...

Element Signup and view all the answers

Which term describes the temperature at which a substance changes from a solid to a liquid?

Melting Point Signup and view all the answers