chapter 3w

Question 1

What is an atom

Answer 1

smallest particle of an element

Question 2

Relatiove mass and chrge of proton neutron and electron

Answer 2

proton: 1, +1
neutron: , 0
electron: 1/1840 -1

Question 3

Nullicide notation

Answer 3

on top - nucleon
below - proton

Question 4

Properties of elements in same group

Answer 4

same chemical properties

Question 5

How is periodic table arranged

Answer 5

elements arranged on increasing proton numbers

Question 6

What are isotopes

Answer 6

same number of protons but diff number of nuetrons

Question 7

similarity of istopes

Answer 7

same electron shells
valence electrons

Question 8

How to calculate relative atomic mass

Answer 8

( mass number x isotopic abundance)