AP BIOLOGY

BIOCHEMISTRY

PROPERTIES OF WATER

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If an element has an atomic number of 26 and an atomic mass of 56, how many neutrons does it have?
A
26
B
30
C
56
D
82
Explanation: 

Detailed explanation-1: -of neutrons =56-26= 30. Q. An atom of an element contains 13 electrons. Its nucleus has 14 neutrons.

Detailed explanation-2: -Please visit the Iron element page for information specific to the chemical element of the periodic table. A metallic element with atomic symbol Fe, atomic number 26, and atomic weight 55.85.

Detailed explanation-3: -Hence, Fe 56 26 contain 26 electrons. 26 protons and 30 neutrons.

Detailed explanation-4: -The number of neutrons is the mass number minus the atomic number, that is 56-26, so there are 30 neutrons in the nucleus.

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