Atomic Structure Part 1

Front

What is the Bohr model of the atom?

Back

The Bohr model describes the atom as having a nucleus surrounded by electrons that orbit at specific distances based on their energy levels.

Front

What happens to an electron when it absorbs energy?

Back

When an electron absorbs energy, it is boosted to a higher energy level and is said to be in an excited state.

Front

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

Back

The total number of protons and neutrons is known as the atomic mass number, which can be found by adding the number of protons (atomic number) to the number of neutrons.

Front

What are isotopes?

Back

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

Front

Who proposed the nuclear model of the atom?

Back

Ernest Rutherford proposed the nuclear model of the atom, which describes most of the atom's mass concentrated in a tiny nucleus.

Front

What is the charge of a proton?

Back

A proton has a positive charge of +1.

Front

What is the charge of a neutron?

Back

A neutron has no charge; it is neutral.

Front

What is the charge of an electron?

Back

An electron has a negative charge of -1.

Front

What is the significance of the atomic number?

Back

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

Front

What is the ground state of an electron?

Back

The ground state of an electron is the lowest energy state, where it is closest to the nucleus.