Question

2. Which of the following statement(s) are true about the atoms of any element?
A. The number of protons in an atom of an element is unique to each element.
B. The number of protons and neutrons in an atom of an element is unique to each element
C. A proton in an atom of one element is identical to a proton in an atom of another element.
D. The number of protons in an atom of an element is the same for all elements

Answer 1

i believe the answer is b

Answer 2

The statement that is true about the atoms of any element is option A. The number of protons in an atom of an element is unique to each element.

Protons are subatomic particles, that are present in the nucleus of an atom of an element. It determines the atomic number and atomic mass of the element.  

• The number of protons is equal to the number of electrons in an element.
• the number of protons of a particular element is also different from the atoms of all other elements
• Due to fact that each atom of varying elements has varying numbers of protons.
• For example, the number of protons, hydrogen is 1, He is 2, while that of Carbon is 6.

Thus, the correct choice is - option A. The number of protons in an atom of an element is unique to each element.

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