Question

select all of the following that are true:

a) protons are in the nucleus and electrons are relatively far from the nucleus.

b) protons and electrons are both present in the nucleus held together by coulombic forces resulting from their opposite charges.

c) Electrons in an atom can exist at any energy

d) Electrons in an atom can only exist at specific energies.

e) Bohr's model states that electrons exist at specific distances from the atom

f) Light of specific wavelength are emitted from atoms when electrons move from one energy level to another

g) when heated, atoms will emit a continuous spectrum of light that includes all wavelenghts with no breaks.

h) electrons actually exist as standing waves that can only have specific energies.

Answer 1

a) Protons are in the nucleus and electrons are relatively far from the nucleus. TRUE.

b) Protons and electrons are both present in the nucleus held together by coulombic forces resulting from their opposite charges. False. Actually Protons & Neutrons comprises a Nucleus.

c) Electrons in an atom can exist at any energy. False. Electrons are filled in discrete energy levels.

d) Electrons in an atom can only exist at specific energies. TRUE.

e) Bohr's model states that electrons exist at specific distances from the atom. TRUE. Bohr's radius.

f) Light of specific wavelength are emitted from atoms when electrons move from one energy level to another.

Partly true. WHen energy is emitted then electron have moved from higher energy level to lower energy level.

g) when heated, atoms will emit a continuous spectrum of light that includes all wavelenghts with no breaks.

False. Spectrum is line spectrum with breaks reveals the fact that there are quantas of energy that emitted.

h) Electrons actually exist as standing waves that can only have specific energies. TRUE.

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