What's in an element? Reading the periodic table

Question 1

How many neutrons? Remember, atomic mass - atomic number = number of neutrons

Accepted Answer

8

Question 2

How many neutrons? Remember, atomic mass - atomic number = number of neutrons

Accepted Answer

14

Question 3

How many neutrons?

Accepted Answer

31 - 15 = 16

Question 4

How many neutrons? Remember, atomic mass - atomic number = number of neutrons

Accepted Answer

6

Question 5

What is the atomic number?

Accepted Answer

18

Question 6

How many neutrons? Remember, atomic mass - atomic number = number of neutrons

Accepted Answer

11 - 5 = 6

Question 7

How many protons?

Accepted Answer

17

Question 8

How many neutrons?

Accepted Answer

10

Question 9

How many neutrons? Remember, atomic mass - atomic number = number of neutrons

Accepted Answer

7 - 3 = 4

Question 10

How many neutrons? Remember, atomic mass - atomic number = number of neutrons

Accepted Answer

7

Question 11

If you were to round the atomic mass of calcium to the nearest whole number, what would it be?

Accepted Answer

40

Question 12

How many neutrons?

Accepted Answer

9 - 4 = 5

Question 13

How many neutrons?

Accepted Answer

4 - 2 = 2

Question 14

How many neutrons?

Accepted Answer

23 - 11 = 12

Question 15

Potassium has 20 neutrons. Which equation shows this to be correct?

Accepted Answer

Atomic mass - atomic number = number of neutrons

Question 16

How many neutrons? Remember, atomic mass - atomic number = number of neutrons

Accepted Answer

12

Question 17

How many neutrons? Remember, atomic mass - atomic number = number of neutrons

Accepted Answer

1 - 1 = 0

Question 18

How many neutrons?

Accepted Answer

14

Question 19

How many neutrons?

Accepted Answer

10

Question 20

What is the atomic mass?

Accepted Answer

32

Questions 20