Atoms
Periodic Table
Elements
Radioactive
Chance!
100
The center of an atom.
What is the nucleus?
100
Today's periodic table is arranged this way.
What is atomic number?
100
One or two letters representing an element.
What is chemical symbol?
100
One way radioactive isotopes are useful.
What is (multiple answers accepted)?
100
This group's elements are typically gases at room temperature.
What are nonmetals?
200
These have a negative charge.
What is an electron?
200
True or False? You can predict an element's properties based on its position in the periodic table.
What is true?
200
Elements in the same row have properties that change...
What is 'in a pattern'?
200
She discovered radiation.
What is Marie Currie?
200
He created the first periodic table.
Who is Mendeleev?
300
These are both located inside the nucleus.
What are protons and neutrons?
300
The atomic number of an element is the same as this.
What is the number of protons?
300
Elements in the same column have...
What is 'similar characteristics'?
300
This is a type of atom with the same number of protons but different numbers of neutrons.
What is an isotope?
300
List three facts about metals.
What is (answers will vary)?
400
The location of electrons.
What is the electron cloud or outside the nucleus?
400
Location of the metals.
What is the left side of the periodic table?
400
This group contains the greatest number of elements.
What is metals?
400
The spontaneous emission of radiation.
What is radioactivity?
400
This group shares properties of metals and nonmetals.
What are metalloids?
500
These are equal in number.
What are protons and electrons?
500
The original arrangement of elements in the first periodic table were based on this.
What is (increasing) mass?
500
How the reactivity of elements change in the periodic table.
What is decreasing as you move right?
500
When the atomic nuclei of unstable isotopes release fast-moving particles and energy.
What is radioactive decay?
500
This group is located on the far right and doesn't usually form compounds.
What are the noble gases?
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