The structure of an atom is defined by two numbers: the proton (atomic) number and the mass (nucleon) number. What is the electr onic configuration of an atom with proton number 5 and mass number 11?
1 answer:
Answer:
c
Explanation:
electronic configuration of an atom with proton number 5 is 2, 3
since no. of proton = no. of electron
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Explanation ;
brainleist please
KMnO4 has the incorrect set of oxidation numbers. Whenever there is an alkali metal, it has an oxidation number of +1. As you can see, K is said to have an oxidation number of +2, so it is incorrect.
The answer is na sodium, bromine
Density = mass / volume so
