Bohr's Model

Front

What is Bohr's Model?

Back

Bohr's Model is a theory of atomic structure that describes the atom as having a small, positively charged nucleus surrounded by electrons that travel in circular orbits around the nucleus.

Front

What is the atomic number?

Back

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

Front

What is the mass number?

Back

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

Front

How many electrons can the first shell hold?

Back

The first shell can hold a maximum of 2 electrons.

Front

How many electrons can the second shell hold?

Back

The second shell can hold a maximum of 8 electrons.

Front

What is the maximum number of electrons that can be found in the third shell?

Back

The third shell can hold a maximum of 18 electrons, but it is typically filled with 8 electrons in the first 20 elements.

Front

What is an electron configuration?

Back

Electron configuration is the distribution of electrons in an atom's energy levels and sublevels.

Front

What is the significance of the principal quantum number?

Back

The principal quantum number indicates the main energy level of an electron in an atom.

Front

What is an ion?

Back

An ion is an atom or molecule that has gained or lost one or more electrons, resulting in a net charge.

Front

What is the difference between a cation and an anion?

Back

A cation is a positively charged ion (lost electrons), while an anion is a negatively charged ion (gained electrons).