atomic structure

Question 1

atoms consist of what

Answer 1

atoms usually consists of a central nucleus containing protons and neutrons surrounded by electrons shells

Question 2

what is the relative mass of a proton

Answer 2

1

Question 3

what is the relative mass of a neutron

Answer 3

1

Question 4

what is the relative mass of a electron

Answer 4

very small

Question 5

relative charge for proton what is it

Answer 5

+1 ( remember think pro for +)

Question 6

what is the relative charge for a neutron

Answer 6

0 ( remember neutral is like neutron and 0 is neutral)

Question 7

what is the relative charge for electron

Answer 7

-1

Question 8

what is a atomic number

Answer 8

he atomic number is the number of protons in the nucleus of an atom

Question 9

what is a element

Answer 9

an element is a substance that cant be broken down into another substance

deeper definition
an element is a pure substance consisting only of atoms that all have the same numbers of protons in their nuclei.

Question 10

what is mass number

Answer 10

The mass number of an atom is its total number of protons and neutrons.

Question 11

for a atom symbol what’s at the top and what’s at the bottom

Answer 11

The symbol for an atom can be written to show its mass number at the top, and its atomic number at the bottom.

Question 12

how do you calculate the number of subatomic particles in an atom

Answer 12

you use the atomic mass and atomic number

number of protons = atomic number
number of electrons = atomic number
number of neutrons = mass number - atomic number