West Coast University Chemistry Periodic Table Questions
for question number 3 just answer part C
Questions and Problems
QI From their positions on the periodic table, categorize each of the following elements as a metal (M), a metalloid (ML), or a nonmetal (NM):
Na S Cu F
Fe C As Ca
Q2 Give the symbol of each of the following elements:
a. noble gas in Period 2.
b. halogen in Period 2
c. alkali metal in Period 3
d. halogen in Period 3
e. alkali metal in Period 4.
f. metalloid in Period 2
Q3 Complete the following table for the elements that are listed. If you have a full display of elements, check to see if your predictions are correct.
Element
Metal/Metalloid/
Nonmetal
Prediction:
Shiny/Dull
Correct?
Yes/No
Chromium
Gold
Lead
Cadmium
Silicon
C. The Atom
Protons
Neutrons Electrons
Name of Symbol of Atomic Mass
Element Element Number Number
Fe
30
27
13
19
20
Bromine
80
Au
197
Questions and Problems
Q4 A neutral atom has a mass number of 80 and has 45 neutrons. Write its atomic symbol.
Q5 An atom has two more protons and two more electrons than the atom in Question 4. What is its atomic symbol?
