structure of the atom

Question 1

what is the relative mass and charge of a proton

Answer 1

the relative mass of a proton is 1 and the relative charge is +1

Question 2

what is the relative mass and charge of a neutron

Answer 2

the relative mass of a neutron is 1 and the relative charge is 0

Question 3

why is there no overall charge in an atom

Answer 3

Because every atom contains equal numbers of protons and electrons, the positive and negative charges cancel out. So there is no overall charge on any atom.

Question 4

what is the relative mass and charge of a electron

Answer 4

the relative mass of a electron is -1 and the relative mass is 0.0005

Question 5

what is the atomic number

Answer 5

the atomic number (in an element) is the protons in an element

Question 5

in the periodic table how is it arranged

Answer 5

the periodic table is arranged is size of its atomic number

Question 6

how can you work out an elements mass number

Answer 6

you can work out an elements mass number by adding the protons and the neutrons

Question 7

how do you work out the number of neutrons in a atom

Answer 7

you can work out the number of neutrons in a atom by subtracting the atomic number from the mass number