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

EasyMedium
123456789101112131415161718
Question 13
Easy74%

This question is about atoms and molecules.

a.

Which subatomic particle has a negative electrical charge?

  • Electron
  • Neutron
  • Proton
[1]
b.

Which subatomic particle has a negligible relative mass (approximately 000)?

  • Electron
  • Neutron
  • Proton
[1]
c.

The chemical formula of sulfur dioxide is SO2\text{SO}_2SO2​.

How many of each type of atom are in one molecule of SO2\text{SO}_2SO2​?

  • Sulfur:
  • Oxygen:
[1]
d.

An atom of element XXX contains:

  • 555 electrons
  • 666 neutrons
  • 555 protons

Give the name of element XXX. Use a periodic table to help you.

[1]
e.

Complete a diagram representing an atom of element XXX to show the position of all its particles. Use the following symbols:

  • ×\times× = electron
  • ∙\bullet∙ = neutron
  • ◯\bigcirc◯ = proton

A diagram showing two concentric rings around a central smaller circle labeled 'Nucleus'.

[2]

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

  1. GCSE
  2. /Chemistry
  3. /A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes