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18 Cards in this Set

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8th grade Science
1st six weeks
periodic table test
study hard!!
There are ________ metals than nonmetals on the periodic table
MORE
Elements on the LEFT side of the periodic table
METALS
Total number of protons in the nucleus of one atom of an element
ATOMIC NUMBER
Each square on the periodic table contains________
NAME, SYMBOL, ATOMIC NUMBER, ATOMIC MASS
The three classifications of elements on the periodic table are:
METALS, NONMETALS, METALLOIDS
Columns on the periodic table are called
GROUPS
Rows on the Periodic Table are called:
PERIODS
Elements on the RIGHT side of the periodic table
NON-METALS
What divides the metals from nonmetals?
ZIG ZAG LINE
What does the zig-zag line help you identify?
WHERE THE METALLOIDS, METALS AND NONMETALS ARE
Why are lathanides and actinides at the bottom of the periodic table?
TO KEEP THE TABLE FROM BEING TOO WIDE
What is Mercury's state, at room temperature?
LIQUID
What are Valence Electrons?
ELECTRONS IN THE OUTERMOST ENERGY SHELL
How many valence electrons do elements in Group 2 have?
2
How many valence electrons do elements in Group 13 have?
3
Helium (Atomic Number: 2) is in which Group? Which Period?
GROUP 18 - Noble Gasses

PERIOD 1
Elements right next to the zig-zag line are called_______
METALLOIDS