Chemistry semester 1 review

Front

What group number are the halogens found?

Back

17 (7A)

Front

Electronegativity is...

Back

how good an atom is at attracting electrons.

Front

How many electrons fit in the first energy level?

Back

2

Front

What is the name of group number 2?

Back

alkaline earth metals

Front

Anions are...

Back

Negative.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the difference between an ionic bond and a covalent bond?

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.

Front

What is the pH scale used for?

Back

To measure the acidity or basicity of a solution.

Front

What are the three states of matter?

Back

Solid, liquid, gas.

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.