Determine the missing species: a) 41Ca+ ? → 41K

b) 15O → 15N+ ?

1. 0

−1

e and 1

0H

+

2. 0

+1e and 1

0H

+

3. 1

0H

+ and 0

+1e

4. 0

−1

e and 0

+1e

5. 1

0H

+ and 0

−1

e

6. 0

+1e and 0

−1

e

7. None of these

4. and

Explanation:

a) The given reaction is

As the mass on both reactant and product side must be equal:

As the atomic number on both reactant and product side must be equal:

b)

Total mass on reactant side = total mass on product side

15 =15 + x

x = 0

Total atomic number on reactant side = total atomic number on product side

8 = 7 + y

y = 1

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explanation:

b. examine and describe cells