1. Look at the table below to answer the following
questions.
groups
periods
1
2
13
14
15
2
3
4
B
16
17
A
C
D
G
18
E
K
L
a. Which element has the lowest ionization energy?___
b. Which element is a metalloid? ________
c. Which element is usually not reactive? __________
d. Which element is very non-metallic?________
e. Which element has a –2 oxidation number?______
Complete the following:
a. Name of element that is in the same
group as Beryllium and period as Bromine
b. Halogen that is a non-metal and is a solid
at room temperature.
c. Element that is a metalloid in period 3
d. What group would X be in the following
compound MgX?
e. What group would X be in XCl3?
f. What group would X be in X3P2?
Use the following elements to answer the
questions: Beryllium and Oxygen
a. Draw the Bohr diagram for each element
below.
b. Going across the period what are you
adding to each element?
c. What stays the same across the period?
d. What is the radius for each element?
e. Explain in terms of structure what
happens to the radius going across the
period.
Use the following elements to answer the questions
below:
Sodium and Cesium
a. Draw the Bohr diagram for each element
below.
b. Going top to bottom in a group what are you
adding to each element?
c. What stays the same in a group?
d. What is the radius for each element?
e. Explain in terms of structure what happens to
the radius in a group as the atomic number
increases.
Consider lithium,
a. Is it a metal or a nonmetal?
b. What type of ion (positive or negative) does your
element form?
c. Why does it form the ion?
d. List 4 other characteristics about metals.
e. Draw the Bohr diagram for your element as an atom
and then an ion.
f. In terms of atomic structure compare the atomic
radius of your atom and ion.
Consider sulfur,
a. Is it a metal or a nonmetal?
b. What type of ion (positive or negative) does your
element form?
c. Why does it form the ion?
d. List 4 other characteristics about non-metals.
e. Draw the Bohr diagram for your element as an atom
and then an ion.
f. In terms of atomic structure compare the atomic
radius of your atom and ion.
Consider copper,
a. What group is this element found
in?
b. What is special about this metal?
c. What type of metal is it?
d. What are the oxidation states of
your metal?