(a) Total number of electrons in an atom for a value of n = 2n2
∴ For n = 4,
Total number of electrons = 2(4)2 = 32
The given element has a fully filled orbital as
\(1s^2 \ 2s^2\ 2p^6\ 3s^2\ 3p^6\ 4s^2\ 3d^{10}\).
Hence, all the electrons are paired.
∴ Number of electrons (having n = 4 and ms = \(-\frac 12\)) = 16
(b) n = 3, l = 0 indicates that the electrons are present in the 3s orbital.
Therefore, the number of electrons having n = 3 and l = 0 is 2.
The product (P) formed in the following reaction is:
Given below are two statements:
In light of the above statements, choose the correct answer from the options given below:
In a multielectron atom, which of the following orbitals described by three quantum numbers will have the same energy in absence of electric and magnetic fields?
A. \( n = 1, l = 0, m_l = 0 \)
B. \( n = 2, l = 0, m_l = 0 \)
C. \( n = 2, l = 1, m_l = 1 \)
D. \( n = 3, l = 2, m_l = 1 \)
E. \( n = 3, l = 2, m_l = 0 \)
Choose the correct answer from the options given below:
In an LCR series AC circuit at resonance, the value of power factor will be …….
An ideal ammeter and an ideal voltmeter have resistances of ………… \(\Omega\) and ……
The atomic structure of an element refers to the constitution of its nucleus and the arrangement of the electrons around it. Primarily, the atomic structure of matter is made up of protons, electrons and neutrons.
Dalton proposed that every matter is composed of atoms that are indivisible and indestructible.
The following are the postulates of his theory:
Several atomic structures of an element can exist, which differ in the total number of nucleons.These variants of elements having a different nucleon number (also known as the mass number) are called isotopes of the element. Therefore, the isotopes of an element have the same number of protons but differ in the number of neutrons. For example, there exist three known naturally occurring isotopes of hydrogen, namely, protium, deuterium, and tritium.