The Periodic Table
Vocabulary
Compounds and Bonds
Electrons and Energy
100
Name the type of element that is shiny, good conductor of electricity and thermal energy and can easily be hammered into sheets:
Metal
100
What is a force that holds two or more atoms together?
chemical bond
100
TRUE OR FALSE a nonpolar compound will dissolve into a polar compound
false
100
How many Valence electrons does an atom need to be stable?
8
200
What is a row on the periodic table called?
period
200
A outermost electron of an atom that participates in chemical bonding?
valence electron
200
What do you call a molecule that unevenly shares electrons?
polar
200
The closer an electron is to the nucleus, is the energy higher or lower?
lower
300
What is a column on a periodic table called?
group
300
What is a model that represents valence electrons in an atom as dots around the element's chemical symbol?
electron dot diagram
300
Which type of bond SHARES electrons?
covalent bond
300
When an electron is further away from the nucleus, what is the strength of its attraction? (think: magnets)
low/weak
400
From left to right, how are the elements arranged?
metals, metalloids, nonmetals
400
What is a group of chemical symbols and numbers that represent the elements and the number of atoms of each element that make up a compound?
chemical formula
400
Which type of bond POOLS electrons
Metallic bond
400
If an element has 6 valence electrons, is it stable or unstable?
unstable
500
What group of elements are poor conductors of thermal energy and electricity?
nonmetals
500
what is an atom that is no longer electrically neutral because it has lost or gained valence electrons?
ion
500
Which type of bond TRANSFERS electrons?
ionic bond
500
What happens to an atom's charge when it GAINS an electron?
it becomes negative
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