Basics of the Chemistry of Life

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means. Examples include Carbon (C), Oxygen (O), and Hydrogen (H).

Front

Which of the following is not an element? Water, Carbon, Oxygen, Hydrogen

Back

Water is not an element; it is a compound made of hydrogen and oxygen.

Front

What charge do electrons carry?

Back

Electrons carry a negative charge.

Front

What charge do protons carry?

Back

Protons carry a positive charge.

Front

What is the atomic symbol for Silver?

Back

The atomic symbol for Silver is Ag.

Front

What type of bond is formed between H and Cl?

Back

A covalent bond is formed between H (Hydrogen) and Cl (Chlorine).

Front

What is a compound?

Back

A compound is a substance formed when two or more elements chemically bond together. For example, water (H2O) is a compound.

Front

What is the difference between an ionic bond and a covalent bond?

Back

An ionic bond is formed when electrons are transferred from one atom to another, while a covalent bond is formed when atoms share electrons.

Front

What are neutrons?

Back

Neutrons are subatomic particles found in the nucleus of an atom that have no charge.

Front

What is the nucleus of an atom?

Back

The nucleus is the central part of an atom, containing protons and neutrons.