Concept explainers
Interpretation:
The element with 12 protons in its nucleus should be predicted.
Concept introduction:
The periodic table represents the arrangement of the elements in increasing order of their
Answer to Problem 3E
The element with 12 protons is Magnesium.
Explanation of Solution
The number of protons in the nucleus of an atom is equal to the atomic number of the atom. No two different elements can have same atomic number thus, the identity of an element can be identified by knowing the number of protons present in its nucleus.
It is given that an element has 12 protons in its nucleus. Thus, the atomic number of an element would be 12 and it is Magnesium.
Thus, the given element is Magnesium.
Chapter U1 Solutions
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