Calculating Subatomic Particles

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

How many protons does Carbon have?

Back

Carbon has 6 protons.

Front

What are neutrons?

Back

Neutrons are subatomic particles found in the nucleus of an atom that have no charge.

Front

What determines the reactivity of an element?

Back

The reactivity of an element is determined by its valence electrons.

Front

What is the mass number of an atom?

Back

The mass number is the total number of protons and neutrons in an atom's nucleus.

Front

How many electrons does a neutral atom have?

Back

A neutral atom has the same number of electrons as protons.

Front

What is the significance of valence electrons?

Back

Valence electrons are the outermost electrons that determine how an element reacts chemically.

Front

Which element has 22 neutrons?

Back

Argon has 22 neutrons.

Front

What is the relationship between protons and atomic number?

Back

The atomic number of an element is equal to the number of protons in its nucleus.

Front

What is the periodic table?

Back

The periodic table is a tabular arrangement of elements organized by increasing atomic number.