An element B has 5 protons and 6 neutrons. What will be the symbol of the element B?

¹¹₆B

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11B

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⁵₁₁B

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¹¹₅B

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Solution

The correct option is D
¹¹₅B

Atomic number of B = Number of protons

= Numer of electrons in the element

= 5

Mass number = Number of protons + Number of neutrons

= 5 + 6

= 11

So, symbol of B:

¹¹₅B

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The nucleus of an atom has 5 protons and 6 neutrons. What would be the (a) atomic number, (b) mass number, (c) the number of electrons, and (d) the number of valence electrons, per atom of this element?

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An element B has 5 protons and 6 neutrons. What will be the symbol of the element B?

The correct option is D 115BAtomic number of B = Number of protons = Numer of electrons in the element = 5 Mass number = Number of protons + Number of neutrons = 5 + 6 = 11 So, symbol of B: 115B

The correct option is D
¹¹₅B

Atomic number of B = Number of protons

= Numer of electrons in the element

= 5

Mass number = Number of protons + Number of neutrons

= 5 + 6

= 11

So, symbol of B:

¹¹₅B