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 do you calculate the number of neutrons in an atom?

Back

Number of neutrons = Mass number - Atomic number.

Front

What is a mass number?

Back

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

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

How many protons does Carbon (C) have?

Back

Carbon has 6 protons.

Front

What is the mass number of Carbon-14?

Back

The mass number of Carbon-14 is 14.

Front

How many neutrons are in Carbon-14?

Back

Carbon-14 has 8 neutrons.

Front

What is the significance of the atomic number in the periodic table?

Back

The atomic number determines the position of an element in the periodic table and its chemical properties.

Front

What element has an atomic number of 11?

Back

Sodium (Na) has an atomic number of 11.

Front

What is the difference between isotopes?

Back

Isotopes are variants of the same element that have the same number of protons but different numbers of neutrons.