Atoms, Ions and compounds

Question 1

What is an isotpoe?

Answer 1

An atoms with the same number of protons and electrons but a different number of neutrons

Question 2

What is a cation

Answer 2

+

Question 3

What is an anion

Answer 3

-

Question 4

Relative isotopic mass

Answer 4

The mass of an isotope compared to 1/12 of carbon 12

Question 5

Relative atomic mass

Answer 5

The weighted mean mass of an atom of an element compared to 1/12 of carbon 12

Question 6

How does mass spectrometry work

Answer 6

-a sample is placed in to the spectrometer
- The sample is vaporised and then ionised into + ions
-the ions are accelerated, heavier ions move slower and are more difficult to deflect so each isotope is seperated
-The ions are detected on a mass spectrum as a mass to charge ratio.
- This will show the relative abundance of different isotopes and help is calculate the ar

Question 7

Hydrogen

Answer 7

H +

Question 8

HYDROXIDE

Answer 8

OH-

Question 9

nitrate

Answer 9

n03-

Question 10

nitrite

Answer 10

n02-

Question 11

hydrogencarbonate

Answer 11

hc03-

Question 12

carbonate

Answer 12

c03 2-

Question 13

sulfate

Answer 13

so4 2-

Question 14

phosphate

Answer 14

po4 3-