Structure of the Atom
Isotopes
Periodic Table
Elements
Other
100
A positively charge particle in the atom
What is a proton/protons
100
Isotopes have the same number of __________.
What is protons
100
There are how many periods on the Periodic Table
What is 7 periods
100
Magnesium is in what group
What is group 2 (Alkaline Earth Metals)
100
The Periodic Table is now arranged by increasing __________.
What is atomic number
200
This subatomic particle has no charge
What is a neutron/neutrons
200
Isotopes vary in their number of _____________.
What is neutrons
200
The region that is directly next to the stair step line
What is metalloids
200
What element is the only nonmetal on the left side of the Periodic Table
What is Hydrogen
200
How is average atomic mass calculated
What is by averaging out all isotopes of a certain element
300
The dense center of an atom
What is the nucleus
300
Mass number is the sum of ________.
What is protons and neutrons
300
The region that makes up huge portion of the Periodic Table
What is metals
300
What element is a metal in liquid form at room temperature?
What is mercury
300
How many quarks have been discovered so far?
What is 6 quarks
400
These particles exist in the a region outside the nucleus
What is electrons
400
Atomic number represents ____________.
What is number of protons an element has.
400
The region on the Periodic Table that consists mostly of gases
What is nonmetals
400
Name an element that is a metalloid
What is Boron, Silicon, Germanium, Arsenic, Antimony, Tellurium, Polonium, or Astatine.
400
How many valance electrons would Florine have
What is 7 valance electrons
500
These particles make up proton and neutrons
What is quarks
500
How many neutrons would oxygen 17 have?
What is 9 neutrons
500
The first scientist to publish a Periodic Table of the Elements
What is Dmitri Mendeleev
500
This group of elements is nonreactive and likes to exist by itself
What is the Noble Gases
500
The atomic mass unit is based off of which isotope of an element
What is carbon 12
M
e
n
u