3.0 The Atom and Models of Atomic Theory

Question 1

what is a proton and what is its charge

Answer 1

Protons have a charge of plus one and sit in the nucleus

Question 2

what is an electron and what is its charge

Answer 2

electrons have a negative one charge and do not sit in the nucleus

Question 3

what is a neutron and what is its charge

Answer 3

they have a neutral charge and sit in the nucleus

Question 4

where is most of the mass of an atom

Answer 4

nucleus

Question 5

what fills most of a electron cloud

Answer 5

empty space

Question 6

what is the name of the attraction between the positive nucleus and the negative electrons

Answer 6

electrostatic attraction

Question 7

is the nucleus stabel

Answer 7

yes because it only have neutral and positive forces

Question 8

name two models of the atom

Answer 8

bohr and electron cloud

Question 9

what is the bohr model of the atom

Answer 9

it is a model of electrons which orbit around the atom in direct shells it is based on the solar system

Question 9

what is the limitations of the bohr model

Answer 9

it violates Violates the Heisenberg Uncertainty Principle.
Does not account for the fact that accelerating electrons do
not emit electromagnetic radiation.