Chem for Bio

Front

What are lipids?

Back

Lipids are macromolecules made mostly of carbon and hydrogen, and they form oils, fats, and waxes.

Front

What is the atomic number of an element?

Back

The atomic number of an element is the number of protons in its nucleus.

Front

What type of bond is formed when electrons are transferred from one atom to another?

Back

An ionic bond is formed when electrons are transferred from one atom to another.

Front

Which element is most likely to form a negative ion?

Back

Chlorine (Cl) is most likely to form a negative ion.

Front

Which subatomic particle has a positive charge?

Back

The proton has a positive charge.

Front

What are the three main types of chemical bonds?

Back

The three main types of chemical bonds are ionic bonds, covalent bonds, and metallic bonds.

Front

What is a covalent bond?

Back

A covalent bond is formed when two atoms share electrons.

Front

What is a metallic bond?

Back

A metallic bond is formed by the attraction between positively charged metal ions and the electrons in a metal.

Front

What is the role of neutrons in an atom?

Back

Neutrons help stabilize the nucleus of an atom and contribute to its mass.

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.