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Inessa [10]
3 years ago
9

Answer the question below based on the periodic table entry for iodine.

Biology
2 answers:
Molodets [167]3 years ago
8 0
Atomic mass - atomic number = neutrons
126.9 - 53 = 73.9 = 74 neutrons
Setler [38]3 years ago
7 0

<u>Answer:</u> The number of neutrons an iodine element contain are 74.

<u>Explanation:</u>

Atomic number is defined as the umber of protons or number of electrons. It is represented as Z.

Atomic number = Number of protons = Number of electrons.

Mass number is defined as the sum of number of protons and number of neutrons. It is represented as A.

Mass number = Number of protons + Number of neutrons

In the given representation, atomic number is written on the top left corner and mass number is written below the symbol of the element.

Atomic number = 53 = Number of protons

Mass number = 127 = Number of neutrons + 53

Number of neutrons = 127 - 53 = 74

Hence, the number of neutrons an iodine element contain are 74.

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