IS3 - Atoms, Ions and Isotopes

Front

If a neutral atom gains more electrons, it will become a(n):
- Positive ion
- Negative ion
- Isotope
- New element

Back

Negative ion

Front

If a neutral atom loses electrons, it will become a(n):
- Positive ion
- Negative ion
- Isotope
- New element

Back

Positive ion

Front

What is the atomic number of the atom shown in this model? Options: 11, 12, 23

Back

11

Front

Is this a neutral atom, or an ion?

Back

A neutral atom, because the protons = electrons

Front

How many neutrons are in the most common isotope of Beryllium (Be)?

Back

5

Front

Which particles are found in the nucleus of an atom?

Back

protons and neutrons

Front

How do you calculate the charge of an atom?

Back

protons - electrons

Front

How do you calculate the mass number of an atom?

Back

protons + neutrons

Front

An atom of Phosphorus has 15 electrons and 16 neutrons. What is its mass number?

Back

31

Front

A charged atom formed by loss or gain of electrons

Back

ions