Which of the following species has less number of protons than the number of neutrons?

_{6}^{12} C

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_{9}^{19} F

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_{11}^{23} N a

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_{12}^{24} M g

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Solution

The correct options are
B $_{9}^{19} F$
C $_{11}^{23} N a$
$_{9}^{19} F$ and $_{11}^{23} N a$ has less number of protons than the number of neutrons
$_{9}^{19} F$ has 9 protons and $19 - 9 = 10$ neutrons.
$_{11}^{23} N a$ has 11 protons and $23 - 11 = 12$ neutrons.
$_{6}^{12} C$ has 6 protons and $12 - 6 = 6$ neutrons.
The number of protons is equal to the number of neutrons.
$_{12}^{24} M g$ has 12 protons and $24 - 12 = 12$ neutrons. The number of protons is equal to the number of neutrons.

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Similar questions

C = 12; O = 16; F = 19; M g = 24

_{6}^{12} C

_{6}^{13} C,_{8}^{16} O, 12^{24} M g,_{26}^{56} F e,_{38}^{88} S r

Atomic number	Mass number	Number of neutrons	Number of protons	Number of electrons	Name of the Atomic species
9	-	10	-	-	-

Atomic number	Mass number	Number of neutrons	Number of protons	Number of electrons	Name of the Atomic species
16	32	-	-	-	Sulphur

Atomic number	Mass number	Number of neutrons	Number of protons	Number of electrons	Name of the Atomic species
16	32	-	-	-	Sulphur

Atomic number	Mass number	Number of neutrons	Number of protons	Number of electrons	Name of the Atomic species
-	2	-	1	-	-

Atomic number	Mass number	Number of neutrons	Number of protons	Number of electrons	Name of the Atomic species
-	1	0	1	1	-

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