Question

worksheet: periodic table trends (s - 2) name
for each of the following, circle the correct element
li si s metal
k ca sc forms +3 ion
s o ar largest atomic mass
b al cl member of the halogen family
p hg ne liquid at room temperature
v nb ta forms a cation
te i xe largest atomic number
si ge sn member of noble gases
li be b 4 energy levels
as se br member of alkali metals
h li na 6 valence electrons
hg ti pb nonmetal
na mg sn member of transition metals
pb bi po 4+ or 4- charge
b c n metalloid
ca hg f gas at room temperature
ca hg f solid at room temperature
chemistry: a study of matter
2.020.00
4.1.4

Explanation:

Step1: Match Li to alkali metals

Alkali metals are Group 1; Li is in Group 1.

Step2: Match S to nonmetal

S is a nonmetal (Group 16, p-block).

Step3: Match K to alkali metals

K is in Group 1, alkali metals.

Step4: Match Br to halogen family

Br is in Group 17 (halogen family).

Step5: Match Sc to transition metals

Sc is a d-block transition metal.

Step6: Match Kr to noble gases

Kr is in Group 18 (noble gases).

Step7: Match Hg to liquid at RT

Hg is the only metal liquid at room temp.

Step8: Match Al to forms cation

Al is a metal, forms $\text{Al}^{3+}$ cation.

Step9: Match Nb to transition metals

Nb is a d-block transition metal.

Step10: Match Te to nonmetal

Te is a nonmetal/metalloid, fits nonmetal.

Step11: Match Ge to metalloid

Ge is a well-known metalloid.

Step12: Match Be to 2 valence e⁻ (no, wait: Li to alkali)

Li is Group 1, alkali metal.

Step13: Match Se to 6 valence e⁻

Se is Group 16, has 6 valence electrons.

Step14: Match Na to alkali metals

Na is Group 1, alkali metal.

Step15: Match Ti to transition metals

Ti is d-block transition metal.

Step16: Match Mg to 4 energy levels? No: Sn to 4+ charge

Sn can form $\text{Sn}^{4+}$ (4+ charge).

Step17: Match Bi to metalloid? No: Po to metalloid

Po is a metalloid.

Step18: Match C to gas at RT? No: N to gas at RT

N exists as $\text{N}_2$, gas at room temp.

Step19: Match Ca to solid at RT

Ca is a solid metal at room temp.

Answer:

1. $\boldsymbol{Li}$ (member of alkali metals)
2. $\boldsymbol{S}$ (nonmetal)
3. $\boldsymbol{K}$ (member of alkali metals)
4. $\boldsymbol{Br}$ (member of the halogen family)
5. $\boldsymbol{Sc}$ (member of transition metals)
6. $\boldsymbol{Kr}$ (member of noble gases)
7. $\boldsymbol{Hg}$ (liquid at room temperature)
8. $\boldsymbol{Al}$ (Forms a cation)
9. $\boldsymbol{Nb}$ (member of transition metals)
10. $\boldsymbol{Xe}$ (member of noble gases)
11. $\boldsymbol{Ge}$ (metalloid)
12. $\boldsymbol{Li}$ (member of alkali metals)
13. $\boldsymbol{Se}$ (6 valence electrons)
14. $\boldsymbol{Na}$ (member of alkali metals)
15. $\boldsymbol{Ti}$ (member of transition metals)
16. $\boldsymbol{Sn}$ (4+ or 4- charge)
17. $\boldsymbol{Po}$ (metalloid)
18. $\boldsymbol{N}$ (gas at room temperature)
19. $\boldsymbol{Ca}$ (Solid at room temperature)