Test - Atomic Structure

Question 1

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

Answer 1

Mass pg. 18

Question 2

3. All elements are composed of extremely small particles called

Answer 2

Atoms pg.18

Question 3

4. Each family in the periodic table has its own characteristic properties based on the number of

Answer 3

Valence electrons pg.18

Question 4

13. The total number of electrons in the outer shell of a sodium atom is

Answer 4

1. Pg.16

Question 5

15. The total number of neutrons in the nucleus of any atom is equal to

Answer 5

Mass number minus the atomic number pg.15

Question 6

16. The maximum number of electrons that can occupy the 2nd shell of an atom of magnesium

Answer 6

8. Pg.16

Question 7

18. An unstable nucleus results from too many or too few….

Answer 7

Neutrons pg.18

Question 8

20. Which word below is represented by the word “period” on the periodic table?

Answer 8

Energy level pg.18

Question 9

25. When looking at halogens on the periodic table, how does the number of valence electrons change as the energy level is increased?

Answer 9

The total number of valence electrons does not change. Pg.13

Question 10

31. What elements would be the most reactive?

Answer 10

Iodine. Pg.17

Question 11

32. What elements would be the least reactive?

Answer 11

Silicon pg.17

Question 12

37. Arranged the elements on the periodic table based on atomic number

Answer 12

Henry Mosley flash cards

Question 13

38. Solid Sphere model; elements are atoms with different masses

Answer 13

Dalton flash cards

Question 14

39. Electron Cloud model; surrounding the nucleus is an electron cloud made of shells

Answer 14

Shridinger and Heisenberg flash cards

Question 15

40. Nuclear Model; gold foil experiment allowed him to discover that the nucleus was the psotitively charged center of the atom

Answer 15

Ernest Rutherford flash cards

Question 16

41. Arranged the elements on the periodic table based on atomic mass

Answer 16

Dmitri Mendeleev

Question 17

43. Electrons travel in fixed orbits around the nucleus of the atom

Answer 17

Niels Bohr

Question 18

44. Named the atom based on the Greek word meaning indivisible

Answer 18

Democritus

Question 19

45. List three elements from the group containing the most reactive non-metals

Answer 19

Fluorine, Chlorine, and Bromine. Pg.16

Question 20

52. Use the following clues and the periodic table to determine the identity of each element described below

Answer 20

Fluorine, radon, magnesium, bromine pg.16