12/8 notes

Question 1

what are the three types of radiation

Answer 1

alpha, beta, gamma

Question 2

what can alpha rays be stopped by

Answer 2

sheet of paper

Question 3

what can bet rays be stoppepd by

Answer 3

.5cm Pb

Question 4

what can gamma rays be stopped by

Answer 4

10cm Pb

Question 5

do all radioactive isotopes decay with a unique half life

Answer 5

yes

Question 6

half life

Answer 6

time taken for an amount of substance to fall to half life its initial value

Question 7

why is it difficult to carry out reactions involing nuclear chemistry

Question 8

sketch the belt of sability. what does it represent

Question 9

why is the ratop pf neutrons/protons increase for stable nuclides with increasin atomic number

Question 10

what does it mean if a nuclide is radioactive

Question 11

why are most nuclides unstable for Z> 83? what type of spontaneous reaction do they undergo

Question 12

for nuclides above the belt what ype of spontaneous reaction do they undergo

Question 13

for nuclides below the belt what spontaneous reaction do they undergo