neutral charge or no charge (0), has a mass of 1 amu, found in the nucleus
neutron
100
How many groups/families are on a Periodic Table?
18
100
What is found along the staircase of the Periodic Table?
metalloids
100
What does APE stand for?
Atomic number = Protons = Electrons
100
List the 3 parts of a chemical equation.
Reactants Yield Products
200
located outside of the nucleus, has a mass of less than 1amu, almost zero, negative (-) charge
electron
200
How many periods are on a Periodic Table?
7
200
What are the most reactive metals?
groups 1 & 2
200
Where are the most reactive nonmetals located on the Periodic Table?
Groups 16 & 17
200
How can you tell if a chemical equation is following the Law of Conservation of Mass?
It must be BALANCED. The # of atoms on the Reactant side must be EQUAL to the # of atoms on the Product side.
300
positive charge (+), has a mass of 1 amu, found in the nucleus, determines the identity of an element
proton
300
What do elements in periods have in common?
same number of energy levels
300
Where are metals located on the Periodic Table?
On the left side of the staircase?
300
How do you calculate the mass of an atom?
Protons + Neutrons = Atomic Mass ( p + n )
300
What evidence indicates that a chemical reaction has occurred?
CGLTP, C color, G gas (bubbling, odor, or fizzing), L light, T temperature (the initial temperature increases or decreases), P precipitate (formation of a solid)
400
It determines the identity of an element. List the 2 names.
proton or atomic number
400
What are the 3 types of elements found on a Periodic Table?
metals, nonmetals, and metalloids
400
Where are the nonmetals located on the Periodic Table?