Question

Fill in the gaps in the following table, assuming each column represents a neutral atom: symbol...

Fill in the gaps in the following table, assuming each column represents a neutral atom:

symbol 65/30Zn
Protons 38 92
Neutrons 58 49
Electrons 38 36
Mass no. 81 235

Homework Answers

Answer #1

65/30 Zn

96/38 sr

87/38 sr

81/36 kr

235/92U

protons

30

38

38

36

92

neutrons

35

58

49

45

143

electrons

30

38

38

36

92

Mass no

65

96

87

81

235

Sr=strontium

Kr=krypton

U=uranium

Mass no=# of protons+# of neutrons

Neutron=mass no- # of protons

Protons=electrons (electroneutrality principle of atoms as positive charge (protons) equals negative charge (electrons)

65/30 Zn

65=mass no

30=atomic no=# of protons (characteristic property of atom)

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