Which planet is the largest? Which planet is the smallest (not including Pluto)?
Which planet is closest in size to Earth?
Which planet has the longest day?
Which planet has the shortest day?
Which planet has the longest year?
Which planet has the shortest year?
Which planet has the most moons?

1. Jupiter

2. Mercury

3. Venus

4. Venus

5. Jupiter

6. Neptune

7. Mercury

8. Saturn (used to be Jupiter)

percent abundance for cu-63 can be shown as:

63 x + 65 (1-x) = 62.9296

65 - 62.9296 = 2 x

x = 1.035

thus, percent abundance for cu-63 is 1.035

percent abundance for cu-65 can be shown as:

63 x + 65 (1-x) = 64.9278

65 - 64.9278 = 2 x

x = 0.0361

thus, percent abundance for cu-63 is 0.0361

the mass spectrum of cu-63 showing the intense peak as, this isotope is found in nature more abundantly around 92.38 % in comparison to cu-65 which is found 62.58 % naturally