Science

Question 1

Group

Answer 1

The colums dividing the periodic table along the y axis.

Question 2

Period

Answer 2

The rows dividing the periodic table along the x axis.

Question 3

Atomic mass

Answer 3

The weight of the atom on the periodic table.

Question 4

Atomic number

Answer 4

The number in which the atom is identified.

Question 5

Symbol

Answer 5

The abreviation used to identify each atom.

Question 6

Proton

Answer 6

The positive parts of an atom that are measured by the atomic number.

Question 7

Electron

Answer 7

The negative parts of an atom that are measured by the atomic number.

Question 8

Neutron

Answer 8

The atomic mass minus the atomic number.

Question 9

1st shell can hold

Answer 9

2 electrons.

Question 10

2nd and thrid shell can hold

Answer 10

8 electrons each.

Question 11

Compounds

Answer 11

2 or more elements

Question 12

Elements

Answer 12

1 type of element

Question 13

Subatonic particles

Answer 13

neutons, protons, and elecrons

Question 14

ions

Answer 14

charged atoms, negative (gains electrons), positive (loses electrons) they either lose or gain electrons because they need to have full electron shells to make them stable. Without full electron shells they are reactive.

Question 15

half-life

Answer 15

Half-life is the representation of the skittles. Half-life is when the number of atoms drops to half, then half of that half, then so on and on.

Question 16

radiation

Answer 16

Radiation is mainly considered bad but there are some types of radiation that are used for good. Alpha, beta, gamma are the three types of radiation and each have different levels of strength.Radiation is the release of energy in rays.

Question 17

alpha

Answer 17

Alpha radiation loses 2 protons and 2 neutrons, and is most common in heavy atoms around the hundreds. Alpha radiation can be stopped by our hands. Alpha radiation is used in smoke detectors as it produces ions in the smoke, then the smoke absorbs the radiation and sets off the alarm.

Question 18

beta

Answer 18

Beta radiation ejects a particle almost identical to electrons and can trace medical imaging. Beta radiation can’t be stopped by our hands but by aluminium. Beta radiation is used to test thickness of materials in industries such as aluminum or paper.

Question 19

gamma

Answer 19

Gamma radiation involves protons and neutrons rearranging themselves, not being shot out. Gamma radiation is the most powerful type of radiation and can’t be stopped by our hand, aluminum, but can be stopped by lead. Gamma radiation can be used for xrays and scanning or cancer but is extremely powerful.

Question 20

Fission

Answer 20

Fission is when a large nucleus splits into 2 smaller nuclei of the similar size.

Question 21

Fusion

Answer 21

Fusion is when 2 small nuclei come toghter to form a large nucleus.

Question 22

Fukushima

Answer 22

When a earthquake set of a tsunami

Question 23

compound - if there is 1+ and 1-

Answer 23

don’t need to put them in because they balance each other out.

Question 24

Comound - if there is 2+ and 1-

Answer 24

need to put a 2 next to the compound to even it out.