1. Compare protons, neutrons and
electrons
Protons
|
Neutrons
|
Electrons
|
|
Charge
|
|||
Location in
Atom
|
2. Look at the figure below.
2
He
4.0
|
a. What is the top number called? ______________
b. What is the bottom number called?
_____________
3. How do you find the number of protons?
4. How do you find the number of electrons?
5. How do you find the number of neutrons?
6. Complete the following:
a.
Nitrogen
Atomic
Number ____
Atomic
Mass ____
Protons ____
Neutrons ____
Electrons ____
b. Sodium
Atomic
Number ____
Atomic
Mass ____
Protons ____
Neutrons ____
Electrons ____
7. How is the Periodic Table of the Elements organized?
8. Where are the metals, nonmetals
and metalloids located on the Periodic Table?
9. If the statement is true write true. If the statement is false, change the underlined
word or words to
make the statement true.
____________________
1. The majority of elements in the periodic
table are nonmetals.
____________________
2. The reactivity of metals tends to increase
as you move from left to right across the periodic table.
____________________
3. Zinc, iron, nickel, and copper are
examples of transition metals.
____________________
4. The elements of Group 1 of the periodic
table are called the lanthanides.
____________________ 5. Most
metals are good conductors of electric current and heat.
10. Name and configure the electrons of these following elements according to KLMN and spdf configuration. Give the location/position of the element in the periodic table.
a)
20Ca
Name :
KLMN configuration :
Spdf configuration :
b)
54Xe
Name
:
KLMN
configuration :
Spdf
configuration :
c)
46Pd
Name
:
KLMN
configuration :
Spdf
configuration :
d)
64 Gd
Name
:
KLMN
configuration :
Spdf
configuration :
e)
28Ni
Name
:
KLMN
configuration :
Spdf
configuration :
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