Saturday Academy Chemistry Review

Front

What are ionic bonds?

Back

Ionic bonds are chemical bonds formed between a metal and a non-metal, where electrons are transferred from one atom to another.

Front

Where are electrons found in an atom?

Back

Electrons are found in the electron cloud surrounding the nucleus of an atom.

Front

What is an isotope?

Back

An isotope is an atom of an element that has a different number of neutrons, resulting in a different atomic mass.

Front

What type of bond is formed between hydrogen and oxygen in water (H2O)?

Back

Covalent bond.

Front

What is the atomic mass of Carbon-14?

Back

14.

Front

What is the difference between an ion and an atom?

Back

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

Front

What is the role of neutrons in an atom?

Back

Neutrons contribute to the atomic mass and help stabilize the nucleus.

Front

What is a covalent bond?

Back

A covalent bond is a chemical bond formed when two non-metal atoms share electrons.

Front

What is the significance of the atomic number?

Back

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

Front

What is the electron configuration of a sodium atom?

Back

The electron configuration of sodium (Na) is 1s² 2s² 2p⁶ 3s¹.