Protons, Neutrons, and Electrons
Periodic Trends
Sig - Figs
Elements, Compounds, and Mixtures
Changes of State
100

How many protons are in P

15

100

Which has the greatest electronegativity:  Al, Ga, or In

Al
100

0.003000

4

100

CO2 (g)

Compound

100

Liquid to solid

freezing

200

How many electrons are in Cl-1

18

200

Which has the greatest atomic radius K, Ca, or Sc

K

200

450

2

200

Orange juice

Mixture

200

solid to liquid

melting

300

How many neutrons are in Zn-70

40

300

Which has the greatest electron affinity: Ti, Mn, or Cu

Cu

300

134,000.00

8

300

Fe (s)

Element

300
liquid to gas

vaporization

400

What is the mass number of a calcium isotope with 22 nuetrons

42

400

Which has the greatest ionization energy: Na, K, or Rb

Na

400

0.00231

3

400

KCl (aq)

Mixture

400

solid to gas

sublimation
500

How many protons are in Fe-56

26

500

Which has the greatest electronegativity: Li, Be, or B 

B

500

12.004

5

500

NaCl (s)

Compound
500

gas to solid

deposition 

M
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