Answer: It´s question of resonance
Explanation: I think in case of crystal glass it have
certain structure. There are certain frequencies crystal can vibrate.
High sound frequencies resonate, also give energy to structure vibrations and it vibrates more strongly until structure breaks up.
As scientists work hard for the results, they may get biased and may sometimes come up with an answer that is based on that. In order to avoid such circumstances, scientific method is put into practice.
Explanation:
- Personal preferences can some times affect a scientific answer. That is not desirable as the experiments will be repeated by different individuals and the same results should be obtained.
- That leads to the importance of documentation of systemic observation, formation of hypothesis and the experimentation to confirm the results, which is the scientific way of coming up with the answer to a scientific problem.
- Scientific methods thus helps in bringing more credibility to findings of the scientists and can be repeated by others to obtain the same results.
Answer: The electronic configuration of Chlorine will be ![[Ne]3s^23p^5](https://tex.z-dn.net/?f=%5BNe%5D3s%5E23p%5E5)
Explanation: Chlorine is an element which belongs to the P-block of the periodic table. Its atomic number is 17.
Atomic Number = Number of electrons
Number of electrons = 17
The nearest noble gas which lies to Chlorine is Neon which has 10 electrons. Rest of the 7 electrons are filled in the 3s and 3p orbitals. Hence, the electronic configuration of Chlorine is
![[Cl]=[Ne]3s^23p^5](https://tex.z-dn.net/?f=%5BCl%5D%3D%5BNe%5D3s%5E23p%5E5)
Answer:
Br- Withdraws electrons inductively
Donates electrons by resonance
CH2CH3 - Donates electrons by hyperconjugation
NHCH3- Withdraws electrons inductively
Donates electrons by resonance
OCH3 - Withdraws electrons inductively
Donates electrons by resonance
+N(CH3)3 - Withdraws electrons inductively
Explanation:
A chemical moiety may withdraw or donate electrons by resonance or inductive effect.
Halogens are electronegative elements hence they withdraw electrons by inductive effect. However, they also contain lone pairs so the can donate electrons by resonance.
Alkyl groups donate electrons by hyperconjugation involving hydrogen atoms.
-NHCH3 and contain species that have lone pair of electrons which can be donated by resonance. Also, the nitrogen and oxygen atoms are very electron withdrawing making the carbon atom to have a -I inductive effect.
+N(CH3)3 have no lone pair and is strongly electron withdrawing by inductive effects.
The correct answer is option C, that is, far greater than 118 as elements combine in different ways.
The estimated number of compounds produced by the elements in the periodic table is much greater than 118 as elements can combine in different manners. Compounds are the substances comprising more than one element that is held together with chemical bonds. In addition, they can be transformed into a distinct chemical composition by associating with another compound through a chemical reaction.
