Matter
Anything with mass and volume
What are the four states of matter?
Liquid
Gas
Plasma
What is a period in the periodic table
A horizontal row
How many electrons are in the first three shells of an atom?
first 1
second 8
third 8
What is the name of the following compound?
N2O4
dinitrogen tetraoxide
What are the smallest building block of matter?
atoms
What is a physical change?
Change in appearance but no new substance is formed (eg changes states)
What is a family (or group) in the periodic table?
A column (vertical)
What is the difference between and atom and an ion?
atom has same number of protons and electrons
Ion has gained or lost electrons
What is the formula for calcium chloride?
CaCl2
What are the three subatomic atoms all matter is composed of?
protons
neutrons
electrons
What is a chemical change?
When a new substance is formed
Where are non-metals located on the periodic table?
Right side of the staircase.
Where does the majority of mass of an atom come from?
protons and neutrons
What is the name of the following?
KOH
Potassium hydroxide
What is an element versus a compound?
Element- composed of only one element from periodic table
Compounds- composed of two or more elements
Is density a chemical or physical property?
physical
How many valence electrons do the Alkali metals have?
One
How many electrons does a arsenic ion have?
36
What is the formula of Chromium (II) Phosphide
Cr3P2
Which subatomic particles are located in the nucleus of an atom?
protons and neutrons
What does the kinetic molecular theory state?
All matter made up of atoms with empty space between them
Particles are constantly moving, the more energy the more they move
Atomic mass tell us how many _______ and ________ are in an atom.
protons and neutrons
What is the difference between a covalent and ionic bond?
covalent two non-metals share electrons
ionic a metal donates an electrons to a non-metal
What is the name of Fe(NO2)3 ?
Iron (III) Nitrite