Elements, Atoms, Ions, And The Periodic Table Worksheet With Answers Page 3
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14Problem: Pick the a) representative elements, b) transition elements, c) inert gas elements, d)
elements that from anions, e) semi- metals, and f) elements that from cations from the
following list: Ca, Si, K, Ar, Cu, Fe Zn, Ge, Kr, Cl, O, F.
Answer:
a) representative elements: Ca, Cl, O, F
b) transition elements: Cu, Fe
c) inert gas elements: Ar, Kr
d) elements that from anions: O, F
e) semi- metals: Si, Ge
f) elements that from cations: Ca, K, Cu, Fe Zn
Look on a periodic chart at the elements listed below. Do you know how to find an elements
atomic number?
Problem: Use your periodic table to find the symbol, atomic number and atomic mass rounded
to two decimal place of each of the following elements:
a) Magnesium b) Neon c) Selenium d) Gold
Answer
Mg, atomic number = 12, mass = 24.31 amu
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