What is atomic number?

(a)  

What is a mineral?

(a)  

(a)   developed the atomic theory.

(a)   is composed of protons and neutrons

What is a proton?

(a)  

A neutron has (a)  

Each proton and neutron weighs approximately 1 (a)  

What is atomic mass?

(a)  

A single particle with a negative charge and a very low mass is known as (a)  

Electrons swarm about the nucleus in concentric regions are called (a)  

What are valance electrons?

(a)  

Elements have varieties called (a)  

The (a)   of an element accounts for the fact that an element is a mixture of isotopes.

Unstable isotopes are called (a)  

The process of decay is (a)  

High-energy electromagnetic rays that eject electrons from atoms or molecules and convert them to ions, frequently causing cellular damage is called (a)  

Causing mutations in DNA is called (a)  

Triggering cancer as a result of a mutation is called (a)  

What is a charged particle with unequal numb or of protons and nuetrons?

(a)  

The particle that gains electrons acquires a negative charge and is called an (a)  

The one that loses electrons acquires a positive charge is called an (a)  

(a)   is substance that ionize in water (salts, acids, and bases) and form a solution capable of conducting electricity.