Parts of an Atom
Name the 3 subatomic particles that make up an atom
protons, neutrons, and electrons
What is the charge of a proton?
positive
Where is all the mass located?
nucleus
What identifies an atom?
protons
If an atom has an atomic number of 6 and an atomic mass of 12, how many neutrons would it have?
(mass) - (atomic #) = neutrons
12-6=6
What are the rows of the Periodic Table called?
Periods
What do the columns represent?
similar chemical and physical properties
Name 3 characteristics of metals
shiny, malleability, ductile, good conductors of heat and electricity, to left of the zig zag line
Name the 2 basic parts of an atom
nucleus and electron cloud
What is the charge of a neutron?
no charge/neutral
What is the mass of a proton?
1 amu
What does APE stand for?
Atomic number
Protons
Electrons
If an atom has an atomic number of 10 and an atomic mass of 24, how many neutrons would it have?
(mass) - (atomic #) = neutrons
24-10=14
How many rows are on the periodic table?
7
What do the column numbers represent?
valence electrons
Name 3 characteristics of nonmetals
opposite of metals, dull, brittle, poor conductors, to the right of the zig zag line
nucleus
What is the charge of electrons?
negative
What is the mass of an electron?
1/1836 amu
What does MAN stand for?
(Mass) - (atomic #)= neutrons
If an atom has an atomic number of 8, how many protons does it have?
8 protons
What do the rows on the Periodic Table represent?
the energy levels
Where are the metals located on the Periodic Table?
left of the zig zag line
Name 3 characteristics of metalloids.
have properties of both metals and non metals, located on zig zag line, 7 elements
Place where neutrons are located?
nucleus
What is the mass of neutron?
1 amu
What info does Man (mass) - (atomic #)= neutrons
give us?
The number of neutrons in an atom
If an atom has 24 protons, how many electrons does it have?
24
What are the columns of the Periodic Table called?
Groups and families
Where are the nonmetals located?
right of the zig zag line
Which group of the Periodic Table has a complete valence energy level?
Group 18 Noble Gasses
Place where electrons are located?
electron cloud
What 2 subatomic particles make up atomic mass?
protons and neutrons
How many columns are on the Periodic Table?
18
Where are the metalloids located?
the zig zag line