P1 AQA Lesson 1 only

Which particle has a positive charge?

• electron

• orbital

• proton

• neutron

Choose the particle that has no charge.

• nucleus

• neutron

• proton

• electron

Has a mass of 1/2000th the mass of a proton, so we normally regard its mass of 0

• electron

• neutron

• nucleus

• proton

What charge does the nucleus have and why?

• positive - the neutrons do not have a charge
• positive - the neutrons and protons are positively charged particles
• neutral - the neutral charge dominates the positive charge
• neutral - electrons cancel out the positive charge of the atom

Tags

NGSS.MS-PS1-1

How many protons does this atom have?

• 3

• 6

• 4

• 2

Which model describes electrons as orbiting in different orbitals around a central nucleus?

• Bohr

• Rutherford

• Nuclear

• Plum Pudding

What statement is true about the energy level of electrons

• The further out from the nucleus , the more energy they have

• The further out they are from the nucleus, the less energy they have

• How far away an electron is from the nucleus does not effect how much energy it has

This was the first model of the atom ever proposed. It was simple and described atoms as tiny spheres that could not be broken down into smaller pieces.

• Democritus's model of the atom
• The "Plum Pudding Model" of the atom
• The "Rutherford Model" of the atom
• The "Solar System Model" of the atom

This model was developed after J.J. Thompson discovered electrons, a particle smaller than an atom. Is shows electrons floating freely in a positive space.

• The "Plum Pudding Model" of the atom
• The "Rutherford Model" of the atom
• Democritus's model of the atom
• The "Solar System Model" of the atom

J.J. Thomson used a cathode ray tube to find what particle in the atom?

• Proton

• Neutron

• Electron

• Nucleus