Mrs Day Q1 vocab 30 questions Quiz

Which term refers to the smallest unit of an element that retains the properties of that element?

• Atom

• Molecule

• Compound

• Mixture

What is the term for the total number of protons and neutrons in an atom's nucleus?

• Atomic number

• Atomic mass

• Mass number

• Period

Which term describes a substance made of two or more elements chemically combined?

• Mixture

• Compound

• Solution

• Element

What do you call a change that results in the formation of new substances?

• Physical change

• Chemical change

• Mixture

• Solution

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which term refers to a shorthand way of representing a chemical reaction using symbols and formulas?

• Chemical property

• Chemical equation

• Chemical symbol

• Subscript

What is the term for a property that can be observed without changing the identity of a substance?

• Chemical property

• Physical property

• Reactivity

• Precipitate

Which term describes a mixture that is not uniform throughout?

• Homogeneous mixture

• Heterogeneous mixture

• Solution

• Pure substance

What is the name for a group of atoms held together by chemical bonds?

• Atom

• Molecule

• Element

• Ion

Tags

NGSS.MS-PS1-1

Which term refers to the number of protons in the nucleus of an atom?

• Atomic mass

• Atomic number

• Mass number

• Period

What is the term for a substance that cannot be broken down into simpler substances by chemical means?

• Compound

• Mixture

• Element

• Solution