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Flashcards in Chemistry 2 Deck (33):
1

Isotope

Each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei.

2

Radioactive

Emitting or relating to the emission of ionizing radiation or particles.

3

Half life

The time taken for the radioactivity of a specified isotope to fall to half its original value.

4

Alpha radiation

Ionizing radiation consisting of alpha particles, emitted by some substances undergoing radioactive decay.

5

Gamma radiation

Gamma rays.

6

Beta radiation

A beta particle is a high-energy, high-speed electron or positron emitted in the radioactive decay of an atomic nucleus.

7

Radiometric dating

Radiometric dating or radioactive dating is a technique used to date materials such as rocks or carbon, in which trace radioactive impurities were selectively incorporated when they were formed.

8

Radiocarbon dating

He determination of the age or date of organic matter from the relative proportions of the carbon isotopes carbon-12 and carbon-14 that it contains.

9

Nuclear reactors

An apparatus or structure in which fissile material can be made to undergo a controlled, self-sustaining nuclear reaction with the consequent release of energy.

10

Fuel rods

A rod-shaped fuel element in a nuclear reactor.

11

Fission

Division or splitting into two or more parts.

12

External radiotherapy

External radiation therapy, is a method for delivering a beam or several beams of high-energy x-rays to a patient's tumor.

13

Internal radiotherapy

Internal radiation therapy also called chemotherapy or seed implantation is a type of cancer treatment

14

Brachytherapy

The treatment of cancer, especially prostate cancer, by the insertion of radioactive implants directly into the tissue.

15

Melt-down

Collapse or break down disastrously.

16

Ground zero

The point on the earth's surface directly above or below an exploding nuclear bomb.

17

Thermal flash

Flash burn is any burn injury caused by intense flashes of light, high voltage electric current, or strong thermal radiation.

18

Electromagnetic pulse

An electromagnetic pulse is an intense burst of electromagnetic energy caused by an abrupt, rapid acceleration of charged particles, usually electrons.

19

Nuclear fallout

Nuclear fallout, or simply fallout, is the residual radioactive material propelled into the upper atmosphere following a nuclear blast.

20

Exothermic

The process spontaneously gives off heat and gets
hot is exothermic.

21

Endothermic

Spontaneously absorbs heat and gets cold is endothermic.

22

Precipitate

A precipitate is a solid that’s formed when two
liquids are mixed together.

23

Reactants

The stuff at the left (CH4 and O2) are the reactants

24

Product

The products are CO2 and H2O.

25

State

The (g) at the bottom of each compound indicates that they are in the gas state.

26

Aqueous

If it’s dissolved in water it’s aqueous (aq).

27

Coefficient

This is where you put numbers in front of each of the compound formulas so that the number of atoms of each element is the same on both sides of the arrow.

28

Synthesis Reactions

Synthesis reactions occur when two chemicals combine to form one larger chemical.

29

Decomposition Reactions

Decomposition reactions occur when one chemical breaks up to form two or more smaller chemicals.

30

Combustion Reactions

If you’ve got something organic reacting
with oxygen to form carbon dioxide gas and water vapor that's a combustion reaction.

31

Single Displacement Reactions

Single displacement reactions occur when the atoms of a pure element replace those of an element in a
chemical compound.

32

Double Displacement Reactions

If the cations of two ionic compounds switch places that"s a double displacement reaction.

33

Acid-Base Reactions

Acid-base reactions are just double displacement reactions in which water is formed.