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Q. Describe Electron Configurations and Orbital Diagrams?
Ans. Remember that the atomic number of an atom tells us the number of protons and electrons in the neutral atom. To assign each of these electrons to a specific orbital in an atom's electron configuration, we must following these two rules:
Aufbau Principle: Electrons fill energy levels in an atom by completely filling one sublevel before moving to the next one of higher energy Hund's Rule: Within a given sublevel, electrons fill all available empty orbitals before pairing up with electrons in occupied orbitals. In other words, there is a maximum number of half-filled orbitals.
To write an atom's electron configuration, you can also use this diagram to help determine the specific order of the subshells that the electrons will fill:
This diagram arranges the orbitals in the order by which they are filled by successive electrons. Just start at the upper left corner, following the arrows, and work your way down as needed to assign orbitals to all the electrons in a given atom. Remember that each orbital holds two electrons, and that:
We can, for example, designate two electrons in a 1s subshell as 1s2, and six electrons in a 2p subshell as 2p6.
State 2nd law of thermodynamics in many forms as possible and show that they are identical in figures?
The de-Broglie wavelength associated with a particle of mass 10 -6 kg moving with a velocity of 10 ms -1 , is: (1) 6.63 x 10 -22 m (2) 6.63 x 10 -29 m
Q. What is Peroxodisulphuric Acid? It is also known as perdisulphuric acid or simply persulphuric acid. The acid can be obtained by the action of chlorosulphonic acid on H 2 0
Carbon And its Compounds Carbon is a typical non-metal present in earth's crust to the extent of 0,02% by mass. All living organisms contain carbon and hydrogen as their ess
Explain heat of Combustion? Ans) The amount of heat liberated when single mole of any substance is completely burnt in oxygen is known as heat of combustion H is negative for he
When 6.85 grams of the Sr(OH)2.xH2O hydrate are dried in an oven, 3.13 grams of anhydrous Sr(OH)2 are formed.whats the value of x..please answer asap
The complete explanation
If hydrogen atom is in an energy level represented by n=4,how many spectral lines are possible in its emission spectrum? Ans) There is a formula for this i.e [ (n 2- n 1 +1)
A diluted polymer solution with a density of 1130 kg/m3 was extruded by a capillary tube of 3.5 mm internal diameter and 1 m long. The following results were contained at 25°C.
what is equevalent weight of Nacl
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