Quiz tomorrow welp

Question 1

can be acquired more easily from the surroundings mainly because the process does not change the charge and the identity of the element.

Answer 1

Neutrons

Question 2

Atoms of the same element that have the same number of protons and electrons but different numbers of neutrons are called

Answer 2

isotopes

Question 3

Most isotopes are…

Answer 3

naturally occurring.

Question 4

What kind of radioisotope is used for this function?

Smoke detectors

Answer 4

Americium- 241

Question 4

a type of isotope that can be produced from heavier elements.

Answer 4

Artificial isotopes/radioisotopes

Question 4

Artificial isotopes are —————- such that when they decay, they release enormous amounts of ____________ which can be harnessed to power up large scale processes in nuclear reactors

Answer 4

highly unstable, radioactivity

Question 5

What kind of radioisotope is used for this function?

detection of explosives

Answer 5

californium-252

Question 6

What kind of radioisotope is used for this function?

treatment of thyroid diseased

Answer 6

iodine-131

Question 7

What kind of radioisotope is used for this function?

age estimation of organic products

Answer 7

carbon -14

Question 8

What kind of radioisotope is used for this function?

estimation of age of rocks

Answer 8

Uranium-238

Question 9

In chemical reactions, only the ————– are involved

Answer 9

Electrons

Question 10

The number of __________in an atom affects its mass, and in turn, affects the physical properties of the atom.

Answer 10

Neutrons

Question 11

are elements that have the same number of neutrons.

Answer 11

Isotones

Question 12

are elements that have the same mass number but different atomic numbers

Answer 12

Isobars