Front

What is the mass number defined as?

Back

The mass number is defined as the number of protons and neutrons in an atom.

Front

What is the atomic mass of Neon?

Back

The atomic mass of Neon is 20.18.

Front

How many protons are in Beryllium?

Back

Beryllium has 4 protons.

Front

What is the atomic number?

Back

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

Front

What does the topmost number (3) represent in an atomic symbol?

Back

The topmost number (3) represents the Atomic Number.

Front

What particles are found in the nucleus of an atom?

Back

The nucleus of an atom contains protons and neutrons.

Front

What is the charge of an electron?

Back

The charge of an electron is negative.

Front

How do you calculate the number of neutrons in an atom?

Back

The number of neutrons can be calculated by subtracting the atomic number from the mass number.

Front

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

Back

The atomic number determines the element's position in the periodic table and its chemical properties.

Front

What is the relationship between protons and electrons in a neutral atom?

Back

In a neutral atom, the number of protons equals the number of electrons.