Download Knowledge Check Periodic Table, Density And Atoms KEY

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Knowledge Check
1. What is the specific name for the number “14”? average atomic mass
2. How many protons, neutrons and electrons does nitrogen have?
7
7
7
N
Nitrogen
14
7
3. Describe the mass, charge, and location of a proton in an atom.
1 amu +
nucleus
4. Which letter indicates each of the following
D halogens
E noble gases
C transition metals
B alkaline earth metals
5. Draw a Bohr Diagram for a neutral phosphorus atom
including protons, neutrons and
electrons.
6. Why would a substance with a density of 10g/mL sink in liquid F but float in liquid X?
Liquid F must be denser than 10g/mL and Liquid X’s density must be less than 10
g/mL.
OR
The two liquids have different densities—F’s density is greater than X’s density.
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