What is the number of electrons in a neutral atom that has $20$ protons in its nucleus?
- A$20$
- B$10$
- C$30$
- D$40$
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Similar Questions
Isotopes of an element have
Difficult
View SolutionAn isotone of $_{32}Ge^{76}$ is:
$(i) \, _{32}Ge^{77}$
$(ii) \, _{33}As^{77}$
$(iii) \, _{34}Se^{77}$
$(iv) \, _{34}Se^{78}$
$(i) \, _{32}Ge^{77}$
$(ii) \, _{33}As^{77}$
$(iii) \, _{34}Se^{77}$
$(iv) \, _{34}Se^{78}$
Medium
View SolutionWhich of the following pairs represents isobars?
Identify the isoelectronic pair from the following.
The spectrum of Helium is expected to be similar to that of . . . . . .
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