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06.01.2021 •
Chemistry
What is the difference between the outer shell of sodium and the outer shell of fluorine?
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Ответ:
The outer shell (the outermost shell) of Na there is 1 electron while in F there are 7 electrons
Further explanationGiven
Sodium and Fluorine
Required
The outer shell difference
Solution
Sodium (symbol Na) is an element in group 1 (alkaline) which has the atomic number 11
So the electron configuration is: [Ne] 3s¹
Meanwhile, Fluorine (symbol F) is a halogen element (group 17) which has atomic number 9
So the electron configuration is: [He] 2s² 2p⁵
If we look at the electron configurations of these two elements, it shows that the element Na to achieve its stability will release 1 electron in the outer shell so that it has an electron configuration like Ne
Meanwhile, Fluorine will need 1 more electron so it can be stable like Ne
So in the outer shell of Na there is 1 electron while in F there are 7 electrons
Ответ:
(CPI) Consumer Price Index
Explanation:
A consumer price index measures changes in the price level of a weighted average market basket of consumer goods and services purchased by households. A CPI is a statistical estimate constructed using the prices of a sample of representative items whose prices are collected periodically.