Ch. 2.1 Nature of Matter and Atom Basics

Atoms have equal number of protons and ___________

Protons have a _____________ charge

The nucleus of an atom is made up of 

What are the 3 subatomic particles?

Hydrogen bonds form

The substance formed by the chemical combinations of two or more elements in definite proportions

Atoms of the same element that differ in the number of neutrons: Carbon-12: Carbon-14

This type of bond is formed when one or more electrons are transferred from one to another

When atoms share electrons what type of bond is formed?  

Electrons that are available to form bonds are the

Pure substance that consists entirely of one type of atom

The number of protons in the nucleus of an element  is it's

The basic unit of matter is the

Isotopes are atoms of the same element with a different number of _____________

Atoms that lose or gain electrons have a + or - charge and are called 

Electrons have a _____________ charge