Atoms
Structure of an Atom
Isotopes and Ions
Periodic Table
Elements
100
Smallest form of elements
What are atoms?
100
Atoms are composed of three types of particles.
What are protons, neutrons, and electrons?
100
Atoms of the same element that have a different number of neutrons.
What are isotopes?
100
He created the first periodic table of elements.
Who is Dmitri Mendeleev?
100
Element located in group 1 and period 1.
What is hydrogen?
200
What element makes up more than half of your body's mass?
What is oxygen?
200
Atomic particles found in the nucleus.
What are protons and neutrons?
200
Is formed when an atom gains or loses one or more electrons.
What is an ion?
200
Organizing method Mendeleev used for the Periodic Table.
What is increasing atomic mass and similar chemical properties?
200
Conduct electricity and heat well and have a shiny appearance.
What are metals?
300
People, Places, and Greek/Lain words
Where do elements get their name?
300
Atomic particle having a relative mass of 1.
What is an electron?
300
Positive ions are represented by this symbol.
What is a raised plus signed?
300
Three major categories of the Periodic Table.
What are metal, metalloids, and nonmetals?
300
Elements in Groups 1 and 17.
What are most reactive?
400
The four basic structures Greek philosophers proposed that everything was made of.
What are air, water, fire, and earth?
400
The identity of an atom is determined by the number of protons in its nucleus.
What is atomic number?
400
This happens to forms a positive ion.
What is an atom must lose an electron.
400
Subtract the atomic number from the atomic mass.
What are number of neutrons?
400
Group commonly known as "halogens".
What is Group 17?
500
Proposed that each element is made of tiny particles called atoms.
Who is John Dalton?
500
Relative mass of a protons or neutron.
What is 2000?
500
Symbol for an ion of Oxygen that has gained two electrons.
What is O2- ? (The 2 should be above subscript with minus sign)
500
Information found on a Periodic table element block.
What are atomic number, element symbol, name and atomic mass?
500
Metal in group 12 that is a liquid at room temperature.
What is Mercury?
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