an isotopes of atomic mass of 25 has 13 neutron in it's nucleus what's it atomic number and the name and chemical symbol of element
Answers
Answer:
The atomic number of the element is 12 . Atomic number is the number of protons in the nuclei of all atoms of an element. The element with the atomic number 12 is magnesium. This is 25Mg , or magnesium-25, which can be abbreviated as Mg-25.
Explanation:
Answer:
The atomic number is
12
, which is the atomic number for magnesium.
Explanation:
The mass number of an isotope is the sum of the protons and neutrons in its atomic nuclei.
If we know the mass number
(
A
)
and the number of neutrons
(
N
)
, we can calculate the atomic number
(
Z
)
by subtracting the number of neutrons from the mass number.
A
−
N
=
Z
25
−
13
=
12
The atomic number of the element is
12
. Atomic number is the number of protons in the nuclei of all atoms of an element. The element with the atomic number 12 is magnesium.
This is
25
Mg
, or magnesium-25, which can be abbreviated as Mg-25.
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