In the nucleus of _ 20 C a^ 40 there are - Vidyadip

MCQ

In the nucleus of $_{20}C{a^{40}}$ there are

A
$40$ protons and $20$ electrons
B
$20$ protons and $40 $ electrons
✓
$20 $ protons and $20 $ neutrons
D
$20 $ protons and $40 $ neutrons

✓

Answer

Correct option: C.

$20 $ protons and $20 $ neutrons

c
(c) $P = \,$ $20$, mass no $(a) = 40$

$N = \,$ $A-P = $ $40 - 20 = 20$

$P = N = 20.$
.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

NEET STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

The less reactivity of chlorine atom in $C{H_2} = CH - Cl$ is due to

In $\left[ {Ni{{\left( {N{H_3}} \right)}_4}} \right]S{O_4},$ the valency and coordination number of $Ni$ will be respectively

Which of the following are produced from coal tar

Standard molar enthalpy of formation of $C{O_2}$ is equal to

Formulae for Nessler's reagent is:

For a diatomic ideal gas in a closed system, which of the following plots does not correctly describe the relation between various thermodynamic quantities?

Which of the following has highest heat of hydrogenation.

In the reaction: ${H_2} + C{l_2}\, \to \,2HCl,\,\Delta H = 194\,kJ$. Heat of formation of $HCl$ is........$kJ$

In which of the following processes, the bond order has increased and paramagnetic character has changed to diamagnetic?

Find the highest ratio of $IP$ values of given pair of elements