Electron arrangement - How can electrons have a nonzero mass but posses no dimension?
The periodic table - didn't we have a quiz on this?
The name's bond - ionic bond
100
Convert 0.00056 into scientific notation
5.6*10^-4
100
Describe the nucleus. What is the charge and what particles make it up
positive charge, protons and neutrons
100
How many valence electrons does fluorine have?
7
100
Give 3 properties of metals
shiny, conductive, malleable
100
what is the oxidation number (charge) of Al?
+3
200
convert 4.56754*10^5 into normal numbers
456754
200
What is an ion
When an atom loses or gains electrons
200
What is hund's rule?
electrons fill in all available orbitals within a sublevel before going back and doubling up.
200
Give 3 properties of nonmetals
non conductive, brittle, dull
200
What is the formula for Zinc(II)chloride
ZnCl2
300
What is the density of an object that has 5g of mass and 10 mL of volume
0.5g/mL
300
What is Bohr's model?
Electrons fall in specific energy levels that orbit the nucleus
300
How many valence electrons does cobalt have?
2
300
Give 3 properties of metalloids
shiny, brittle, semi conductive
300
What is the name of NH4PO4
ammonium phosphate
400
Some data values are found to be 8.5, 9, 8.5, 8.5, 8, 10, 8. The true value is 4.6. How would you describe this data set?
Precise
400
A sulfur isotope has 16 neutrons and 18 electrons. Provide its mass number and its charge
32, -2
400
What element has the electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d10
zinc
400
describe what happens to atomic radius, ionization energy, and electronegativity as you go left to right on the table and top to bottom
(left to right )atomic radius goes down , ionization energy and electronegativity go up
(top to bottom)atomic radius goes up , ionization energy and electronegativity go down
400
What is the oxidation number of iron in Fe2O3
+3
500
Pen and paper ready. How many inches are in 5 meters if 1meter=1000mm and 1inch=25.4mm
196.85
500
Why is atomic mass a decimal while mass number is a whole number?
Atomic mass is the average of mass numbers of all the isotopes while mass number is the p+n of a specific isotope.
500
Give the electron configuration of strontium. How many valence electrons?
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2
2
500
Rank the following from smallest atomic radius to largest atmoic radius: cesium, arsenic, sodium, berrylium, lanthanum, carbon