An atom of the element chromium has an atomic number of 24 and a mass number of 52. how many electrons are in an uncharged atom of chromium? 0 24 28 52

Answer : The correct option is, '24'

Explanation :

Element = Chromium

Atomic number = 24

Mass number = 52

The electronic configuration of chromium atom is,

As per electronic configuration, the number of electrons are = 24

or,

Atomic number = Number of electrons = Number of protons

Mass number = Number of protons + Number of neutrons

As we know that the atomic number is equal to the number of electrons. So, the number of electrons in an uncharged atom of chromium are '24'.

b i think it’s a water wheel turning in a stream

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.