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Atomic and molecular physics

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How many subatomic particles of atom

lord satan 30th Jun, 2022

Hello sir,

Only three kind of sub atomic particles are there :-

1. Electron:- This subatomic particles are negatively charged with a charge of -1.602 * 10 -19 C.

2.proton :- they's are positively charged subatomic particles with a charge of +1.602 * 10 -19 C.

3.neutron :- This sub atomic particles are neutral in nature.

Hope you find this useful

39 Views

how to get mock tests sample papes

pdwords Student Expert 15th Jul, 2021

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1118 Views

A given metal crystallizes out with a cubic structure having edge length of 361 pm. If there are four metal atoms in one unit cell, what is the radius of one atom ? Solution please

ginnisachdeva02_9364270 Student Expert 15th May, 2020

Hey!

Solution is given below :

Since there are four metal atoms in one unit cell, the unit cell is fcc type. For fcc unit cell, radius r=0.3535 a, where a is the edge length of the unit cell. Hence, r=0.3535×361 pm =127.6 pm

Thus, the radius of one atom is 127.6pm.


Hope it helped to clear your delimma

Thank you

1577 Views

the wavelength of the first line in balmer series the hydrogen spectrum is lambda what is the wavelength of second line

Mounika Sonti 20th May, 2020

Hello!!!!

Hope you are doing great!!!!

According to rydberg's equation 1/λ = RZ 2 (1/n 1 2 - 1/n 2 2 )

λ is inversly proportional to n 2

therefore ..;;

λ1/λ2=n2 2 /n1 2

As balmer series start from first line i.e, n1=2,n2=3,λ1=λ ,λ2=?

λ/λ2=3^2/2^2

λ/λ2=9/4

Therefore., wave length of second line in balmer series ,, λ2=4λ/9

Hope it helps !!!!!



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