A
B
C
100
Group 18, with a stable number of valence electrons.
What are noble gases?
100
Arrangement of elements in the current periodic table.
What is by atomic number?
100
Model that shows the number of bonds by connecting the symbols in a chemical formula.
What is structural formula?
200
Name of group 2 elements.
What is alkaline earth metals?
200
Most composition of human body is this type of element.
What is non-metal?
200
Symbol that indicates an atom has a tendency to lose a valence electron.
What is "+"?
300
State of most non-metals at room temperature.
What is gas?
300
The particles that make up an atoms.
What are protons, neutrons, and electrons?
300
Symbol of atom that gains an electron.
What is "-"?
400
State of most metals at room temperature.
What is solid?
400
Reacts with a metal to form a salt.
What is a halogen?
400
Represented by dot on an electron dot diagram.
What are valence electrons?
500
The most abundant metal loud in the universe.
What is silicon?
500
Occupy energy levels in an atom.
What are electrons?
500
Water is this type of unequally shared bond.
What is a polar molecule?
M
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n
u