Write down the Sulfur ion with charge-2. Determine the number of electrons in this ion. With a solution please
Answers
Answer:
Monoatomic ion can simply be defined as the non-neutral atom of any element. This non-neutrality of the monoatomic ion arises as a result of the difference in the number of protons and electrons present in it. The surplus number of electrons leads to the creation of negatively charged ions, whereas the electron-deficient ion is considered to be positively charged.
Answer and Explanation: 1
The given ion is
S
2
−
. This ion belongs to the element sulfur. The atomic number of sulfur is 16. Since the atomic number signifies the number of protons existing in an atom. Also, the number of protons available in the atom and the ion formed from that atom are always similar. So, the number of protons present in the given ion is 16.
Mass number of sulfur is 32. This means the sum of number of protons and neutrons available in the nucleus of the give ion of sulfur is 32. Also, the number of protons in the given ion is 16. So, the number of neutrons in the
S
2
−
ion is (32-16) that is 16.
The charge on any atom or ion is obtained by subtracting the number of electrons from the number of protons. So, a charge of -2 signifies that the given ion contains 2 more electrons than the protons. Thus, the number of electrons in
S
2
−
ion is (16+2) that is 18.
Hence,
S
2
−
ion has 16 protons, 16 neutrons and 18 electrons.