Chemistry of Life

Front

What is a covalent bond?

Back

A covalent bond is formed as a result of sharing an electron pair between atoms.

Front

What is an atom?

Back

An atom is the smallest part of anything, consisting of protons, neutrons, and electrons.

Front

What does mass number represent?

Back

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

Front

What are neutrons?

Back

Neutrons are subatomic particles with no charge, found in the nucleus of an atom.

Front

What is the nucleus of an atom made up of?

Back

The nucleus is made up of protons and neutrons.

Front

What is the charge of protons?

Back

Protons have a positive charge.

Front

What is the charge of electrons?

Back

Electrons have a negative charge.

Front

What is the difference between atomic number and mass number?

Back

Atomic number is the number of protons in an atom, while mass number is the sum of protons and neutrons.

Front

What is an ion?

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

Front

What is the role of electrons in chemical bonding?

Back

Electrons are involved in forming bonds between atoms, either by sharing (covalent bonds) or transferring (ionic bonds).