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unit two
unit three
100

convert 850 milliliters to liters

0.85 liters

100

what are the 3 subatomic particles and their charges

protons (+), electrons (-), neutrons (none)

100

what type of element gives up electrons, making the ions positively charged

metals

200

how many significant figures are in 5.03

3 significant figures 

200

what is the periodic trend of atomic radius

moving a cross a row decrease, moving down increases

200
how do you name a non-metal ion?

add -ide usually at the second vowel

300

physical or chemical change: you crack an egg, mix it up, and cook it in a frying pan

chemical change

300

noble gas electron configuration of calcium

[Ar] 4s2

300

name the covalent bond: CCl4

carbon tetrachloride

400

convert 2.3 x 108 to a standard decimal number

230000000
400

a sample decays from 40g to 5g in 75 days. What is its half-life?

25

400

write the formula for the ionic compound: magnesium oxide

Mg2O2

500

convert 0.0000457 to scientific notation

4.57 x 10-5

500

The half-life of Carbon-14 is 5700 years. If you start with 100 grams of carbon-14, how much will you have after 11400 years?

25g

500

write the formula for the covalent compound: diboron tetrahydride

B2H4

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