Test. Atoms And Periodic Table

Question 1

6. Does energy level represent the word period on the periodic table?

Answer 1

Yes

Notes

Question 2

10. What is the correct symbol for an isotope of carbon with 6 protons and 6 nutrons?

Answer 2

12c

Notes

Question 3

11. Does a neutral atom with 8 protons have 8 electrons?

Answer 3

yes because it is neutral

Notes

Question 4

12. How do you find the atomic number in an atom?

Answer 4

Protons

Notes

Question 5

13.boron,carbon,nitrogen, and oxygen are all part of what group?

Answer 5

Period

Notes

Question 6

14. Which element is the least reactive

Argon,iodine,silver,silicone?

Answer 6

argon

Notes

Question 7

18.why is an atom neutral?

Answer 7

The numbers of protons and electrons are equal

Notes

Question 8

19.each family in the periodic table has its own characteristic properties based on the number of what?

Answer 8

Valence electrons

Notes

Question 9

20.substances that cant be broken down are called what?

Answer 9

Elements

Notes

Question 10

23.Is iodine the most reactive out of argon and silver?

Answer 10

yes

Notes

Question 11

24.Is silver a good conductor or electricity?

Answer 11

Yes

Question 12

30.How many protons does magnesium have?

Answer 12

12

Notes

Question 13

37.Who figured out that electrons travel in fixed orbits around the nucleus of the atom?

Answer 13

neils bohr

Notes

Question 14

38.who made the solid sphere model?

Answer 14

dalton

Notes

Question 15

39.who made the electron cloud model?

Answer 15

shrodinger and hesienberg

Notes

Question 16

49.List three elements from the group containing the most reactive nonmetals.

Answer 16

F,CI,Br

Notes