7th Grade Chemistry Review 2

Front

Which group of metals is known for being highly reactive and located in the first column of the periodic table?

Back

Alkali metals are highly reactive and located in the first column of the periodic table.

Front

Which element is a halogen?

Back

Chlorine is a halogen.

Front

Fill in the blank: The element with the symbol 'N' is ______.

Back

Nitrogen is represented by the symbol 'N'.

Front

How many valence electrons are in an atom of Carbon?

Back

Carbon has 4 valence electrons.

Front

Ability to rust is this type of property:

Back

Rusting is a chemical property.

Front

What is the atomic number of Carbon?

Back

The atomic number of Carbon is 6.

Front

What are the three states of matter?

Back

The three states of matter are solid, liquid, and gas.

Front

What is the pH scale used for?

Back

The pH scale measures the acidity or basicity of a solution.

Front

What is the chemical formula for water?

Back

The chemical formula for water is H2O.

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances.