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Periodic Table
Atomic Structure
Name that Element
Random
100
What do we call the horizontal rows on the periodic table?
Periods
100
What two parts make up the nucleus of an atom?
Protons and neutrons
100
Atomic Number is 24
Chromium (Cr)
100
Charge of a proton
Positive
200
What do we call the vertical columns on the periodic table?
Groups (aka families)
200
Where are the electrons found in an atom?
In the electron cloud surrounding the nucleus
200
Atomic Mass of 28.0855
Silicon (Si)
200
Element with the symbol Ar
Argon
300
Where are the metals located on the periodic table?
To the left of the stair-step line
300
What charge does an atom's nucleus have?
Positive
300
DAILY DOUBLE: 5 Protons, 6 Neutrons
Boron
300
Number of valence electrons that sulfur has.
6
400
What do we call the elements that touch the stair-step line?
Metalloids (aka semi-metals)
400
DAILY DOUBLE: A change in the number of neutrons of an atom makes what?
An isotope
400
Element with the symbol of Sn
Tin
400
Subatomic particles that make up protons and neutrons.
Quarks
500
What do we call the elements in groups 3-12?
Transition elements
500
The third energy level of Period 4 elements can hold how many electrons?
Eight
500
Period 3 element with 7 valence electrons
Chlorine (Cl)
500
Number of electrons in the first energy level.
Two