Homework Blog 6

ISBS #19-24 p. 51

19. Number of protons and neutrons needed for an electrically neutral atom:

a. Carbon: 6 protons, 6 electrons

b. Aluminum: 13 protons, 13 electrons

c. Lead: 82 protons, 82 electrons

d. Chlorine: 17 protons, 17 electrons

20. Are the following atoms electrically neutral?

a. Sulfur: no

b. Iron: no

c. Silver: yes

d. Iodine: no

21. Are the following atoms electrically neutral, an anion, or a cation?

a. anion

b. electrically neutral

c. electrically neutral

d. cation

e. cation

22. Was the electrical charge or lack of electrical charge for each particle in #21 from a neutral atom gaining electrons, losing electrons, or neither?

a. losing electrons

b. neither

c. neither

d. gaining electrons

e. gaining electrons

23. Symbol and electrical charge for the following atoms or ions:

a. H

b. Na+

c. Cl-

d. Al+

24. Name and formula for the ionic compound that can be formed from these cations and anions:

a. KI = potassium iodine

b. CaS = calcium sulfur 

c. FeBr = iron bromine

d. BaOH = barium oxygen hydrogen

e. NHPO = nitrogen hydrogen phosphorous oxygen

f. AlO = aluminum oxygen