A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes

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Question 11

Medium

This question is about the atomic model and subatomic particles.

Atoms are composed of subatomic particles. Table 1 outlines the properties of two of these particles. Complete Table 1 by identifying the missing values and the name of the particle.

neutron: Relative mass = [ A ], Relative charge = [ B ]
[ C ]: Relative mass = $12000\frac{1}{2000}$ (or negligible), Relative charge = $- 1$

[2]

Define the term mass number.

[1]

Two isotopes of carbon are carbon-12 ( $12C^{12}\text{C}$ ) and carbon-14 ( $14C^{14}\text{C}$ ). Explain, in terms of subatomic particles, why both isotopes react in exactly the same way with oxygen.

[1]

Rutherford’s alpha particle scattering experiment provided vital evidence that led to the plum pudding model being replaced by the nuclear model.

Describe how the observations from this experiment led to the key conclusions of the nuclear model of the atom.

[4]

A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes

Question 11

A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes Questions

A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes

Question 11

A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes Questions