Atomic Structure and Isotopes (paper 1 and 2)

Question 1

What’s the RM of protons

Answer 1

1

Question 2

What’s the RM of neutrons

Answer 2

1

Question 3

What’s the RM of electrons

Answer 3

Negligible

Question 4

What’s the overall charge of an atom

Answer 4

Neutral

Question 5

What must be the same number

Answer 5

The protons and electrons

Question 6

What are isotopes

Answer 6

A version of an element with different numbers of neutrons

Question 7

What’s the definition of RAM

Answer 7

The average mass of all the isotopes of that element, compared to carbon having a mass of 12

Question 8

What is Ar

Answer 8

RAM

Question 9

How to calculate Ar

Answer 9

X the Atomic mass with the percentage on each isotope, add them together, then divide by 100

Question 10

What did Dmitri do

Answer 10

He arranged the elements by their RAM

Question 11

Why did Dimitri break his rule

Answer 11

So that elements with similar properties lined up with each other

Question 12

What do the protons decide

Answer 12

What the element is

Question 13

Electrons are as the same as protons expect in what

Answer 13

Ions

Question 14

What is the difference ions and isotopes

Answer 14

Isotopes have a different number of neutrons, ions have a different number of electrons