the periodic table
lewis dot diagrams
atomic mass
lab equipment
miscellaneous ?'s
100
the 7th group on the periodic table
What is halogens
100
Xe+4
What is • [• Xe •]+4 •
100
99% 14N, 3% 15N, 2% 16N
What is 14.07
100
This makes test tubes easier to carry
What is test tube holder
100
name how to read an element off the perodic table
What is atomic number 6 C (symbol of element) avg. atomic mass 12.0 carbon (element name)
200
another word for the semi- metals
What is metalloids
200
P+3
What is [ •P•]+3
200
80% 127I, 17% 126I, 3% 128I
What is 126.86
200
The difference between crucible tongs and beaker tongs
What is beaker tongs are used for beakers
200
the "periods" on the periodic tabel stand for
What is how many shells
300
the"groups" on the periodic table stands for
What is valence electrons
300
Ga
What is • • Ga •
300
75% 133C, 20% 132Cs, 5% 134CS
What is 132.85
300
this holds a ring clamp
What is a ring stand
300
Rutherford did what experiment
What is gold foil experiment
400
numbers 57-71 are not on the periodic table because
What is they are all chemically similar
400
Mg
What is • Mg•
400
85 Rb 72.2% , 87 Rb 27.8%
What is 85.556
400
these are used for holding chemicals in small amounts
What is test tubes
400
atoms make up
What is all matter
500
name group 1 and group 2
What is 1: alkali 2:alkaline
500
F-2
What is [F•]-2
500
234 U 0.01%, 235 U 0.71%, 238 U 99.28%
What is 238.1654
500
this test tube like container is used to measure
What is graduated cylinder
500
an excited atom makes (3 answers)
What is •heat •light •sound
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