Chapter 3 Lesson 1

contains protons and neutrons

move around the nucleus

substance that cannot be broken down into simpler substances

basic unit of matter

Which of the following is positively charged and is located in the nucleus?

• electron

• proton

• neutron

• none of them

Electrons are shared

Electrons are transferred

two or more atoms joined by covalent bonds

substance composed of atoms of two or more different elements

Organic compounds are covalent bonded carbon atoms.

• True

• False