Question

Please just help with these few! Also, these are my answers.

Which statement accurately describes how electrons are arranged in Bohr's atomic model?

electrons travel randomly in the large space outside the nucleus
electrons travel around the nucleus in fixed energy levels with varying energies electrons travel around the nucleus in fixed energy levels with equal amounts of energy ***
electrons vibrate in fixed locations around the nucleus

Which statement about subatomic particles are true?

protons, neutrons, and electrons all have about the same mass ***
electrons have no mass, but protons and neutrons have mass
neutrons do not have a charge or mass
protons, neutrons, and electrons have a mass, but electrons have far less mass

Metallic bonds form between

cations and protons
anions and protons ***
cations and anions

Which of the following has the highest melting point?

metallic compound
ionic compound
covalent compound ***
cations and electrons

Answer 1

For the first one, electrons travel around the nucleus in fixed energy levels with varying energies.

Second one, protons, neutrons, and electrons have a mass, but electrons have far less mass

Third one, cations and protons

Fourth, not sure.