Atoms
Elements
Periodic Table
Identity Crisis
Whatever
100
smallest unit into which matter can be divided and still retain the characteristic properties of an element.
What is an atom?
100
a pure substance that cannot be broken down into simpler substances by ordinary means
What is an element?
100
Organization of elements based on properties
What is the periodic table?
100
Group 2, Period 4
What is Calcium?
100
protons + neutrons
What is atomic mass?
200
the sub-particles located in the nucleus of an atom
What is a proton and neutron?
200
this has 10 protons
What is Neon?
200
Numbered 1-18 and indicates the number or category of valence electrons
What are groups?
200
Group 8, Period 6
What is Osmium?
200
=protons =electrons
What is atomic number?
300
the sub-atomic particle that "hangs out" in a cloud
What is an electron?
300
Three categories of classification on the periodic table
What is Metal, Nonmetal, and Metalloid?
300
Numbered 1-7 and indicates the number of energy levels
What are periods?
300
Group 14, Period 5
What is Tin?
300
Hydrogen, Helium, Neon, and Oxygen
What are non-metals?
400
True or False: an element can be determined by a representation of its atom (picture).
What is true?
400
Stable gas, more valence electrons than Chlorine, less protons than Krypton
What is Argon?
400
Increases across and down the periodic table (used to identify the element)
What is the atomic number?
400
28 protons, 35 Neutrons
What is Nickel?
400
This person is credited for the creation of the periodic table which we use today
Who is Dmitri Mendeleev?
500
Atoms of the same element combine to form this
What is a molecule?
500
More than one element can combine to form this
What is a compound?
500
Most non-reactive group on the periodic table
What are noble gases?
500
Group 3, Period 6, atomic mass is 150
What is Samarium?
500
Name the group classification that contains Boron, Silicon, Arsenic, Antimony.
What are metalloids?
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