Atomic Structure and Ions

Front

What is the atomic number of an element?

Back

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

Front

What are neutrons?

Back

Neutrons are neutral subatomic particles found in the nucleus of an atom, contributing to the atomic mass.

Front

What is the charge of a proton?

Back

Protons have a positive charge.

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 an anion?

Back

An anion is a negatively charged ion, formed when an atom gains electrons.

Front

What is a cation?

Back

A cation is a positively charged ion, formed when an atom loses electrons.

Front

How do you calculate atomic mass?

Back

Atomic mass is calculated by adding the number of protons and neutrons in an atom's nucleus.

Front

What is the role of electrons in an atom?

Back

Electrons are negatively charged particles that orbit the nucleus and are involved in chemical bonding.

Front

What is the Bohr model of the atom?

Back

The Bohr model describes the atom as a small, positively charged nucleus surrounded by electrons that travel in circular orbits.

Front

What is the significance of valence electrons?

Back

Valence electrons are the outermost electrons of an atom and are important for determining how an element reacts chemically.