Chenistry

Question 1

What is the rule for electron configuration?

Answer 1

2, 8, 8 ,2

Question 2

What is the charge for the 3 sub atomic particles

Answer 2

Protons=+1
Neutrons=0
Electrons=-1

Question 3

What is an isotope

Answer 3

A nucleus with the same number of protons but different number of neutrons

Question 4

Where on a element synbol does atomic number go

Answer 4

on the top

Question 5

Where on a element symbol does atomic weight go

Answer 5

on the bottom

Question 6

What particle has the smallest mass

Answer 6

electron

Question 7

What is the mass number of an element

Answer 7

the number of protons and neutrons

Question 8

What is an element

Answer 8

a substance that cannot be broken down into simpler substances by chemical methods

Question 9

What is an compound

Answer 9

A substance containing 2 or more elements combined together

Question 10

What is a mixture

Answer 10

Different substances but not chemicly joined in any way

Question 11

What is an atom

Answer 11

the smallest part of an element that can exist on its own

Question 12

What is a molecule

Answer 12

two or more atoms chemicly combined

Question 13

What are ions

Answer 13

Ions are atoms that have gained electrons

Question 14

How would you work out the neutron number in an element

Answer 14

Atomic mass minus atomic number

Question 15

How would you work out the number of electrons

Answer 15

its the exact same as the atomic number

Question 16

What are Anions?

Answer 16

Atoms that are negativly charged

Question 17

What are Cations?

Answer 17

Atoms that are positivly charged

Question 18

Where are metal ions found?

Answer 18

Ionic compounds

Question 19

How is Paper Chromatography placed out?

Answer 19

A spot of ink is placed on the X mark and the paper is suspended in water. As the water rises up the paper, the different dyes travel different distances and so are seperated on the chromatogram.

Question 20

What is paper chromatography used for?

Answer 20

To identify what an unknown liquid is made of

Question 21

Where will the number of protons be on an element on the PT

Answer 21

It will be the smallest sumber out of atomic mass or atomic weight (if mass is 3 and weight is 7, the proton will be 3)

Question 22

How would you find the amount of electrons on an element on the PT

Answer 22

Work the protons out first and then what ever the protons are, the electrons will be the same ( if the proton number is 8, the electron number will be -8)

Question 23

How would you find the amount of Neutrons on an element on the PT

Answer 23

Work out protons, then since the atomic weight is protons and neutrons, minus the proton number from the atomic weight ( if protons = 5 and the wight is 14, you would do 14-5 = 9, neutrons = 9)

Question 24

What is the mass for the 3 sub atomic particles?

Answer 24

Protons = 1
Neutron = 1
Electron = 1/2000

Question 25

What is the Brownium motion

Answer 25

Random

Question 26

What is the difference between periods and groups on the periodic Table

Answer 26

Periods are colums going left or right

Groups go up or down

Question 27

What are 2 functions of a xylem tissue?

Answer 27

Transfer of Water

Transport

Question 28

State the names of two other groups of arthropods

Answer 28

Insect

Myriapod

Question 29

State two features of cells that are shared by all living organisms.

Answer 29

Cell Membrane

Cytoplasm

Question 30

State the names of two cell structures that are involved in making or secreting proteins.

Answer 30

Ribasomes

Mitochondria

Question 31

State two ways in which the structure of bacteria differs from the structure of viruses

Answer 31

Bacteria has a cell wall and cell membrane