Name the type of atom that has gained or lost electrons.
An ion
100
Horizontal rows going across the chart are called?
Periods
100
Who created the first table of the elements by atomic mass?
Dimitri Mendeleev
100
The three states of matter found on the table are...
solid, liquid, and gas
200
Name the family that is stable and nonreactive that is composed of all gases.
The noble gases
200
What stays the same as you move down a group?
The number of valence electrons
200
Vertical columns are called?
Groups
200
This person made the actinides a separate group and discovered 10 new elements.
Glenn Seaborg
200
What is found on the right side of the stair step line?
Nonmetals
300
Where are the Halogens located on the periodic table?
Column 17
300
What do atoms in the same period have in common?
The number of energy shells (levels) of electrons
300
When moving left to right across a period, the atomic mass of the elements __________________.
Increases
300
Henry Moseley reorganized the periodic table to be aligned how it is now, by the _____________ _____________.
Atomic Number
300
What are the characteristics of metals? (Name all 4)
1. good conductors
2. malleable
3. high luster or shiny
4. ductile
400
What are characteristic of nonmetals? (Name 3)
1. able to shatter or crumble
2. poor conductors
3. dull or earthy
400
Name the group on the table with 3 valence electrons
Group 3/13
400
When moving down a group the ________________ increases.
Density
400
Enrico Fermi was a physicist who made important discoveries about splitting the atom and harnessing the power. He made significant contributions to creating the first __________ ___________.
Atomic bomb
400
Elements that touch the stair step line are _________________.
Metalloids
500
Who is the most awesome person in the universe?
Not you
500
Name an element that would have characteristics similar to sodium?
Lithium or Potassium
any element in group 1
500
What type of elements are found on the left side of the stair step line?
Metals
500
The model we use to diagram an atom that shows the energy levels came from what scientist?
Niels Bohr
500
What are the two liquids (at room temperature) found on the table?