Test - Atomic Structure

Question 1

2. The measurement of how much matter an object contains is its

Answer 1

Mass NB 7.4

Question 2

22. An atom is electrically neutral because

Answer 2

The number of protons and electrons are equal NB 7.7

Question 3

32. Which element (Iodine, Silicon, Silver, or Argon) the most reactive?

Answer 3

Silicon NB 7.14 - 7.15

Question 4

48. Draw a Bohr model for Calcium-42.

Answer 4

There would be 20 protons, 22 neutrons, 4 energy shells, 2 valence electrons, 8 electrons in the third shell, 8 electrons in the second energy shell, and 2 electrons in the first shell. NB 7.22

Question 5

52 b. This element has 6 energy levels and 8 valence electrons. It must be ________

Answer 5

Rn NB 7.14

Question 6

52 d. This element is in the family with the most reactive nonmetals and has 4 energy levels. It must be _______

Answer 6

Br NB 7.14