Measurements
How many significant digits are there?
10000025.00002
13
Elements that loose protons become what?
New Elements
What is the name of the family found in group 7A or 17?
Halogens
What is the charge on Perchlorate?
-1
How many electrons can a p orbital hold?
6
Convert 355K to Celsius?
82 degrees Celsius
How many electrons are found in Ca +
19 e-
Who discovered the amount of protons in the nucleus?
Moseley
Bonds that occur between nonmetals and nonmetals are called
Covalent Bonds
Atoms that break apart and charge water are called
Electrolytes
Write in scientific notation: .00000537
5.37 x 10 -6
what do we call atom with a postive or negative charge?
ion
gas, brittle solid, dull-looking, poor conductor
Write the chemical formula for Tin (IV) hydroxide
Sn(OH)4
Atoms that gain electrons are called
anions
Convert 15 km to cm
1,500,000 cm
12 protons
Who has a bigger ionization energy?
Selenium of Calcium?
Selenium
Write the formula for calcium flouride
CaF2
Predict the solubility state for Ca(C2H3O2)2
Aqueous
Calculate the % error of the experimental value 9.00g/mL if the accepted value is 8.86g/mL
.45%
What element has 25 electrons and protons?
Manganese
What elements are found in the d block of the periodic table?
Transition Metals
Why are parenthesis included when writing a formula?
To indicate multiple poly atomic ions are involved in bonding
Ions that are crossed off in a complete ionic equation are called what?
Spectator ions