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1 April, 14:32

The electron cloud model describes which of the following?

the negative charge of the electron

the trails left by an electron as it moves around the nucleus

the group of protons that are in the nucleus

the neutron orbital

2nd question:

If an oxygen atom has 8 protons and 10 neutrons in its nucleus, what is its atomic number?

18

10

8

not enough information to calculate

3rd question:

If an atom loses a neutron, what happens?

Its mass stays the same, and it becomes a different element.

Its mass stays the same, and it is still the same element.

Its mass is lowered, and it becomes a different element.

Its mass is lowered, but it is still the same element.

+5
Answers (1)
  1. 1 April, 14:47
    0
    1) The trails left by an electron as it moves around the nucleus

    The electron model dictates that the electrons have no fixed position so it traces their path.

    2) 8

    Atomic number is equivalent to proton number

    3) Its mass is lowered, but it is still the same element.

    The element's identity is due to the number of protons; however, neutrons play a large role in an atom's mass. Thus, the mass will decrease but the element will be the same. Such variants are called isotopes.
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