Chemistry

Created by: the lunatic hugger
Created on: 12-05-17 11:15

What are the 3 states of matter?

solids, liquids and gases

1 of 9

What happens to temperature when a material changes from one state into another?

The temperature of the substance does not change during melting, boiling or freezing, even though energy is still being transferred. ... The temperature also stays the same while a liquid freezes, even though heat energy is still being released to th

2 of 9

What is diffusion?

Dissolved substances have to pass through the cell membrane to get into or out of a cell. Diffusion is one of the processes that allows this to happen.

3 of 9

Define what is meant by a) Element b) compound c) mixture

a)a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids. b) a thing that is composed of two or more separate elements; a mixture. c) a substance made by mixing

4 of 9

What does the atomic number indicate?

The number of protons in an atomic nucleus; it indicates the position of an element in the periodic table. atomic number in Science. atomic number. The number of protons in the nucleus of an atom. In electrically neutral atoms, this number is also eq

5 of 9

How can you calculate the number of neutrons in an atom?

The mass number is the sum of protons and neutrons in the nucleus. The atomic number is the number of protons. Therefore, you can subtract the atomic number from the mass number to find the number of neutrons.

6 of 9

What is an 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, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an el

7 of 9

What is the relative charge and mass on an electron?

relative mass = 0.0005 charge =−1

8 of 9

what is the relative charge and mass of a proton

mass =1 charge +1

9 of 9

Other cards in this set

Card 2

Front

What happens to temperature when a material changes from one state into another?

Back

Card 3

Front

What is diffusion?

Back

Card 4

Front

Define what is meant by a) Element b) compound c) mixture

Back

Card 5

Front

What does the atomic number indicate?

Back

View more cards

Similar Chemistry resources:

See all Chemistry resources »

See all state of matter resources »

Get Revising

Chemistry