Show:
general
various
etc.
Calcs
More calcs
100
Where are metals found on the periodic table?
left and bottom
100
Are metals bigger or smaller than nonmetals typically
bigger
100
Are most of the elements metals, nonmetals, or semimetals
metals
100

2.5 moles of oxygen gas has what mass?

80

100
Calculate #PNE in a lithium atom
3P 4N 3E
200
Is ionization energy (energy required to remove an electron) high or low for metals?
low
200
What do we call the metals that can form more than one ion
transition metals
200
What’s the maximum # of electrons in the highest energy level of an atom?
8
200
How many moles are in 9.0g of Al?
.33
200
Draw the electron dot diagram for Bromine.
Br with 7 dots around it
300
Which element has the highest electronegativity?
Fluorine
300
Which group is best described as being very reactive, largest atoms in their period, and low ionization energies
1A or alkali metals
300
The number of this subatomic particle NEVER changes?
proton
300
What percent of C2H4 is carbon
85.7% or 86%
300
What’s the full electron configuration for sulfur?
1s22s22p63s23p4
400
Family name for group 7A?
halogens
400
Which scientist said that electrons are arranged in shells (energy levels)?
Bohr
400
The Pauli-exclusion principle says that electrons in the same orbital must have ______ spin.
opposite
400
22.6g of sulfur is how many atoms?
4.25 x 10^23
400
16.2 liters of helium is how many moles of helium?
.723
500
Is magnesium more closely related to calcium or sodium?
calcium
500
How many valence electrons does nitrogen have?
5
500
Brittle, soluble, and high melting point describes which type of compound/molecule?
ionic
500
What's the empirical formula of a compound containing 3.6g of carbon, 0.9g of hydrogen, and 2.4g of oxygen?
C2H6O
500
1. What’s the correct coefficient on FeCl2 when the following reaction is balanced correctly? Al(NO3)3 + FeCl2  Fe(NO3)2 + AlCl3
3