Semester 1 Final Exam Review EL 24/25

Front

Balance the equation: Al₂O₃ --> ?

Back

2Al₂O₃ --> 4Al + 3O₂

Front

How many protons does this isotope of titanium have?

Back

22

Front

What is the measure of nuclear particles: protons + neutrons?

Back

Atomic Mass

Front

What are subatomic particles with a negative charge?

Back

Electrons

Front

How many protons, electrons, and neutrons are in this atom? 16 protons, 18 electrons, 16 neutrons

Back

16 protons, 18 electrons, 16 neutrons

Front

What is the atomic number?

Back

The number of protons in the nucleus of an atom.

Front

What is the difference between protons and neutrons?

Back

Protons are positively charged, while neutrons have no charge.

Front

What is the charge of an electron?

Back

Negative charge.

Front

What is the atomic mass unit (amu)?

Back

A unit of mass used to express atomic and molecular weights.

Front

What is the formula for calculating atomic mass?

Back

Atomic Mass = Number of Protons + Number of Neutrons