ANSWER KEY
CHAPTER 1
Answers will vary for the activities not listed here.
Activity 1.5:
1) C= 2, O= 6
2) 3
3) 2
4) Si= 2, O= 8
5) 20
Activity 1.6:
1) nobelium 2) vanadium 3) gadolinium 4) polonium 5) einsteinium 6) berkelium
7) tellurium 8) scandium 9) ytterbium 10) niobium 11) tin 12) holmium
13) neptunium 14) curium 15) mercury 16) tantalum 17) cerium 18) gallium
19) selenium 20) bromine 21) iridium
22) thorium 23) nickel 24) cobalt 25) chlorine
CHAPTER 2
Activity 2.3
1) phosphorus 2) fluorine 3) calcium 4) gallium 5) titanium 6) silicon
7) rhodium 8) iodine 9) scandium 10) palladium 11) tin
12) sulfur
13) chlorine 14) argon 15) nitrogen
16) hydrogen 17) carbon 18) boron
19) potassium 20) xenon
Activity 2.4
1) “Why did the mouse say, “Cheep, cheep,” when the bird’s cage fell apart?”
“He was filling in for the bird who had the day off.”
2) “What do you get when you cross a vampire with a mouse?”
“A terrified cat!”
3) What were Batman and Robin’s new names after they were run over by a car?
Flatman and Ribbon!
CHAPTER 3 Activity 3.4
Nitrogen: 1s2 2s2 2p3
Sulfur: 1s2 2s2 2p6 3s2 3p4
Neon: 1s2 2s2 2p6
Chlorine: 1s2 2s2 2p6 3s2 3p5
Lithium: 1s2 2s1
Boron: 1s2 2s2 2p1
Silicon: 1s2 2s2 2p6 3s2 3p2
Fluorine: 1s2 2s2 2p5
Activity 3.5
Ag-47
Am-95
At-85
As-33
H-1
He-2
I-53
In-49
Os-76
P-15
S-16
Se-34
Activity 3.6
1) Be 2) N
3) Na
5) P
4) S
6) Ca
Challenge: Fe
Activity 3.6
Just use the Periodic Table as your guide. It tells you what all the symbols are!
CHAPTER 4
Activity 4.1
Activity 4.2
Activity 4.3
1) B- boron (boring) 2) Ar- argon (“are gone”)
3) Ba- barium (“bury ‘em”)
4) Es- einsteinium (after Einstein)
5) Pu- plutonium (named after Pluto, which is way out there!)
6) Eu- europium (named after Europe)
7) Fe- iron (as in ironing clothes)
8) Kr- krypton
9) Hg - mercury
10) Cf- californium
11) Si- silicon (“silly con”)
12) Ni- nickel
13) Po- polonium (“polo” like field hockey played while riding horses)
14) Os- osmium (sounds like “Oz”)
Chapter 5 does not have any activities that need answers.
CHAPTER 6
Activity 6.4
1) PLaSTiC
2) GaSOLiNe
3) PrOPaNe
4) AsPHAlt
5) AlCoHoL
6) BUCKY BAlL
7) CaFFEINe 8) AmInO AcID 9) FAtS
10) PaRaFFIn
11) PoLYEsTeR 12) GLuCoSe
13) HaIr
14) GLuTeN
15) NYLON
16) ArTiFICIAl FLaVORS
17) PLaNT FIBeR
Trivia question: The letter J is the only letter that does not appear in any element symbol.
Activity 6.5
1) b 2) d
3) a
4) noble gases 5) alkali
6) halogens
7) S
8) C
9) N 10) He
11) sand 12) salt 13) bleach 14) Teflon 15) plaster 16) c 17) e 18) protons
19) d 20) c BONUS: 1) sulfur 2) 146
3) 38
CHAPTER 7
Activity 7.4
1) gallium, Ga
6) tin, Sn
2) arsenic, As
7) thallium, Tl
3) lead, Pb
8) bismuth, Bi
4) antimony, Sb
9) tellurium, Te
5) indium, In
10) aluminum, Al
CHAPTER 8
Activity 8.6
1) Ca (not transition metal) 2) Be (not alkali metal) 3) K (not non-metal)
4) Cm (not transition metal) 5) Fm (not lanthanide) 6) Na (not alkali earth metal)
7) Pt (not actinide) 8) Br (not semi-metal) 9) Rn (not transition metal) 10) Te (not lanthanide)
Activity 8.7
1) Tb, terbium
2) Sg, seaborgium
3) Pm, promethium
4) U, uranium 5) Pu, plutonium
6) Nd and Sm, neodymium and samarium 7) Md, mendelevium
8) Eu, europium
9) Er, erbium 10) Cf, californium