If you have one more proton than tin, which has an atomic number of 50, you would have an atomic number of 51. This corresponds to the element antimony (Sb). Therefore, you are antimony.
Platinum
I believe your question is incomplete. What is an inert gas and has one more proton... one more proton than what, exactly? Than hydrogen? If so, the answer would be helium.
zinc
Yes, sodium-24 (24Na) has one more proton than sodium-23 (23Na). Sodium-24 has 11 protons, while sodium-23 has 10 protons.
The gas is helium. Helium is inert and has 2 protons, while hydrogen has 1 proton.
Tin's atomic number is 50. Thus, it has 50 protons per atom. The atom with 51 protons is antimony.
Platinum
I believe your question is incomplete. What is an inert gas and has one more proton... one more proton than what, exactly? Than hydrogen? If so, the answer would be helium.
The element with one more proton than sodium is magnesium. Sodium has 11 protons, while magnesium has 12 protons.
The atomic number is equivalent to its number of protons. One proton in atom is its atomic number is 1. Hydrogen is the only atom with one proton.
He was a German shepherd dog. Actually there were more than one of him.
The element with one more proton than argon is potassium, which has atomic number 19. Argon has an atomic number of 18.
zinc
Yes, sodium-24 (24Na) has one more proton than sodium-23 (23Na). Sodium-24 has 11 protons, while sodium-23 has 10 protons.
Helium has one more proton than hydrogen
compound
Be is in the s block too. Li has one less proton than Be.