Atomic and Ionic Structure

Question 1

parts of atom

Answer 1

proton - positive charge, v. dense, nucleus, mass of 1 amu
neutron - neutral charge, 1 amu, v. dense, nucleus
electron - negative charge , v. small so no mass, around nuclues in clode-like shpaes called orbital

Question 2

Isotope notation

Answer 2

Mass number is neutron + protons

Atomic number is number of protons

Atomic symbol is abbrev of chem name

Question 3

isotopes

Answer 3

members of a family of an element that all have the same number of protons but different numbers of neutrons

Question 4

What is ion?

Answer 4

atom that has gain or lost electrons (written in top right corner of isotope notations)

Question 5

What are cations?

Answer 5

ions with posibite charge (lost electrons)

Question 6

What are anions?

Answer 6

negative charge (gained electrons)