Chemistry of life

The basic building blocks of matter

• Atom

• Elements

• Molecules

• Organisms

A group of two or more atoms that are bonded together

• Elements

• Molecules

• essentials elements of life

Electrons have a __________ charge.

• Negative

• Neutral

• positive

A ________ is a new substance formed by the chemical union of different elements that lose their properties and acquire new ones.

• Compound

• Mixture

• Element

What particles are found in the nucleus of the atom?

• neutrons and electrons

• protons and neutrons

• protons and electrons

What is at the center of every atom?

• Nuclear

• Nucleus

• Electron

• Molecule

An electron of an atom...

• lives inside the nucleus and has a neutral charge.

• lives inside the nucleus and has a neutral charge.

• lives inside the nucleus and has a negative charge.

• circles the nucleus and has a negative charge.

With a compound, the substances ______ be separated with a simple process.

• Can not

• Might

• Can

Which of the following cannot be broken down into something simpler?

• Compound

• Element

• Chemical formula

• Mixture

How many different types of atoms are there in the following molecule?

• 7

• 6

• 3

• 8