C4 ATOMS

Descripción

atom | mota
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Resumen del Recurso

Pregunta 1

Pregunta
The nucleus ..
Respuesta
  • is in the middle of the atom and contains protons and neutrons. It has a positive charge.
  • The total number of protons and neutrons.

Pregunta 2

Pregunta
Electrons ...
Respuesta
  • ...move around the nucleus in electron shells and is negatively charged. Electrons are tiny!
  • ...are useful for the hydrogenation of alkenes.

Pregunta 3

Pregunta
The mass of a proton is ...
Respuesta
  • 1
  • 2
  • 3

Pregunta 4

Pregunta
The mass of a neutron is ...
Respuesta
  • 0
  • 1
  • 3

Pregunta 5

Pregunta
The mass of an electron is ...
Respuesta
  • 5
  • 0.5
  • 0.0005

Pregunta 6

Pregunta
The charge of a proton is ...
Respuesta
  • +2
  • 0
  • +1

Pregunta 7

Pregunta
The charge of a neutron is ...
Respuesta
  • 0
  • 1
  • 2

Pregunta 8

Pregunta
The charge of an electron is...
Respuesta
  • 1
  • -1
  • 0

Pregunta 9

Pregunta
Who concluded from his experiments that atoms weren't solid spheres?
Respuesta
  • J J Thomson
  • John Dalton
  • Rutherford

Pregunta 10

Pregunta
Bohr suggested that electrons can only exist in _?_, or _?_.
Respuesta
  • nuclear atom | particle
  • fixed orbits | energy
  • fixed orbits | shells
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