Chemistry Worksheet Page 2
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1
2
3
4Name: _____________________________ Block: ______
Chemistry I
potassium =
1
magnesium =
2
carbon =
4
nitrogen =
5
13. Place the following orbitals in order of increasing energy:
1s, 3s, 4s, 6s, 3d, 4f, 3p, 7s, 5d, 5p
1s, 3s, 3p, 4s, 3d, 5p, 6s, 5d, 4f, 7s
14. Identify each element as a metal, metalloid, or nonmetal.
a. fluorine
nonmetal
d. phosphorus
nonmetal
b. germanium
metalloid
e. lithium
metal
c. zinc
metal
f. oxygen
nonmetal
15. a. Circle the transition metals below.
magnesium
titanium
chromium
mercury
aluminum
b. Which block (s, p, d, or f) are the transition metals
found?d
16. Give two examples of elements for each category.
a. Noble gases
He, Ne, Ar, Kr, Xe, Rn
b. Halogens
F, Cl, Br, I, At
c. Alkali metals
Li, Na, K, Rb, Cs, Fr
d. Alkaline earth metals
Be, Mg, Ca, Sr, Ba, Ra
17. Why do the elements potassium and sodium have similar chemical and physical properties?
They have the same number of valence electrons because they are in the same family/group
18. Identify the element that:
rd
2
a. Contains a full 3
energy level
Ar
c. Outer energy level is 4s
Ca
b. Contains 3 electrons in the 2p level
N
d. Contains 5 electrons in the 4d level
Tc
0
19. How many protons, neutrons, and electrons does the element cobalt have?
27 p+, 27 e-, 32 n
20. What is a group (or
family)?vertical column
What is a
period?horizontal row
21. What is the common name for group 18 (8A)?
Noble gases
Why do the elements of this group usually not form ions?
They have full valence energy levels
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