Question

Define the terms:
a) mass number
b) ion
c) cation
d) anion
e) element
f) orbit​

Answer 1

Answer:

a) The mass number, also called atomic mass number or nucleon number, is the total number of protons and neutrons in an atomic nucleus.

b) An ion is a charged atom or molecule.

c) an ion with a positive electrical charge

d) an ion with a negative electrical charge

e) In chemistry, an element is a pure substance consisting only of atoms that all have the same numbers of protons in their atomic nuclei.

f) In atomic theory and quantum mechanics, an atomic orbital is a mathematical function describing the location and wave-like behavior of an electron in an atom.

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Answer 2

Answer:

Mass number :-the total number of protons and neutrons in a nucleus.

Ion:-an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.

cation:-a positively charged ion

Anion:-a negatively charged ion,

Element:-, an element is a pure substance consisting only of atoms that all have the same numbers of protons in their atomic nuclei. Unlike chemical compounds, chemical elements cannot be broken down into simpler substances by chemical means.

Orbit:-an atomic orbital is a mathematical function describing the location and wave-like behavior of an electron in an atom. This function can be used to calculate the probability of finding any electron of an atom in any specific region around the atom's nucleus.

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