Chemistry extra credit december

Front

What charge does an atom have if it LOSES an electron?

Back

Positive (+) charge.

Front

When an atom loses a valence electron, it becomes a(n) _____________ ion.

Back

It becomes a positive ion.

Front

How many protons does titanium have?

Back

Titanium has 22 protons.

Front

Which isotope of lithium has 4 neutrons?

Back

Li-7 has 4 neutrons.

Front

What are negative ions called?

Back

Negative ions are called Anions.

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom.

Front

What is a cation?

Back

A cation is a positively charged ion.

Front

What is an anion?

Back

An anion is a negatively charged ion.

Front

What happens to an atom's charge when it gains an electron?

Back

It becomes negatively charged.

Front

What is the mass number of an atom?

Back

The mass number is the total number of protons and neutrons in the nucleus.