Bohr Models

Front

What is a Bohr model?

Back

A Bohr model is a representation of an atom where electrons orbit the nucleus in fixed circular paths or energy levels.

Front

What are energy shells?

Back

Energy shells are regions around the nucleus of an atom where electrons are likely to be found, each shell corresponds to a specific energy level.

Front

How does the energy of electrons change in different shells?

Back

Electrons in higher energy shells have more energy than those in lower energy shells.

Front

What is the mass number of an atom?

Back

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

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 significance of the nucleus in an atom?

Back

The nucleus contains protons and neutrons and is the central part of an atom, contributing most of its mass.

Front

What is an electron?

Back

An electron is a negatively charged subatomic particle that orbits the nucleus of an atom.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What is the role of neutrons in an atom?

Back

Neutrons are neutral particles in the nucleus that contribute to the mass of the atom and help stabilize the nucleus.

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, balancing the positive and negative charges.