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100
Atomic Number: 11 Protons: 11 Electrons: ?
11
100
Column of elements in the periodic table is called what?
Group or Family
100
What is the appropriate way to write the chemical symbol for tin?: sn, SN, Sn
Sn
100
Are nonmetals good or poor conductors of heat and electricity?
Poor
100
Part on an atom that has a positive charge.
Proton
200
The horizontal (left to right) rows on the periodic table.
Periods
200
State of matter that most metals are at room temperature.
Solid
200
How many letters does a chemical symbol have?
1 or 2
200
Particle in an atom that has a negative charge.
Electron
200
Very small center core of an atom.
Nucleus
300
When a material can be pulled out into a long wire.
Ductile
300
In an atom, the number of electrons equals the number of what?
Protons
300
This type of element contains the most elements.
Metals
300
What does an element's atomic number tell you?
Number of protons in an atom.
300
What does the number of protons plus the number of neutrons in an atom equal?
Atomic Mass
400
A property that allows an element to easily transmit electricity and heat.
Conductivity
400
Why are elements put in a column with other elements?
They have similar properties.
400
Elements that have characteristics of a metal and a nonmetal.
Metalloids
400
Does the chemical reactivity of metals tend to increase or decrease from left to right across the periodic table?
Decrease
400
What takes up the majority of the periodic table: Alkali Metals, Transition Metals, or Nonmetals?
Transition Metals
500
Where are the Alkali Metals found on the periodic table?
Far left column, group/family 1
500
Person that organized the first useful periodic table in the 1800's.
Dmitri Mendeleev
500
Where on the periodic table are the most reactive metals found?
The first column on the left, group/family 1
500
Atomic Number: 15 Mass Number: 31 Neutrons: ?
16
500
Name the four things found in an element's square.
Atomic Number, Atomic Mass, Element Name, Chemical Symbol