Question 1

What is the smallest unit of an element that retains its properties?

Accepted Answer

Atom

Answer

Electron

Answer

Molecule

Answer

Compound

Question 2

Which of the following is a compound?

Accepted Answer

Water (H2O)

Answer

Carbon (C)

Answer

Oxygen (O2)

Answer

Sodium (Na)

Question 3

What do we call two or more atoms bonded together?

Accepted Answer

Molecule

Answer

Compound

Answer

Element

Answer

Ion

Question 4

Which of the following statements is true about elements?

Accepted Answer

Elements cannot be broken down into simpler substances

Answer

Elements are always gases

Answer

Elements can be created in a lab

Answer

Elements are made of compounds

Question 5

What determines the chemical properties of an element?

Accepted Answer

The number of electrons in the outer shell

Answer

The number of protons

Answer

The state of matter

Answer

The mass of the atom

Question 6

What is the term for a substance made of only one type of atom?

Accepted Answer

Element

Answer

Compound

Answer

Molecule

Answer

Ion

Question 7

What do we call a substance formed when two or more elements chemically bond together?

Accepted Answer

Compound

Answer

Element

Answer

Solution

Answer

Mixture

Question 8

Which particle in an atom has a positive charge?

Accepted Answer

Proton

Answer

Neutron

Answer

Nucleus

Answer

Electron

Question 9

What is the name given to a negatively charged particle in an atom?

Accepted Answer

Electron

Answer

Ion

Answer

Neutron

Answer

Proton

Question 10

What is a combination of two or more substances that are not chemically bonded called?

Accepted Answer

Mixture

Answer

Solution

Answer

Element

Answer

Compound

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