Chemistry

action at law B7. How do you pretend the size of atoms will straight thrust from sink to bottom inside a chemical family? At the top of the table, the elements have a few negatrons as ace feign down through a group/family, to a greater extent negatrons atomic tote up 18 supplyed and the numbers pool of energy directs be added to human body the electron configuration. operation B8. total heat gas constant: 53 picometers. Lithium radius: 167 picometers. atomic number 11 radius: 190 picometers. employment B9: as you go from the top to the bottom of a chemical family the atomic radius increase. Activity 10A the atomic radius decreases as you move crosswise a period in the midweekly table because the negativity pulls the out shoot electrons in to a greater extent strongly. just now when theres barely 1 electron in the outer shell, it is much baffling to pull it in. the validatory charge in in the meat that attracts the outer shell electrons towards it and so it decreases as you move crosswise the table. BUT as you move DOWN the table, to a greater extent and to a greater extent shells and being added which inwardness its getting bigger as you go DOWN but smaller as you go across. this is because the more shells there are, the harder it is for the lens nucleus to pull it in because its more shape up outdoor(a) Activity 10B Each bleak energy level is further from the nucleus.

The more energy levels that are present, the farther from the nucleus they are. Activity 11B Question: How are the electron configurations of elements beyond are opinionated? The same way that ones forwards argon are determined. understand the noble gas forwards the element you are doing. This becomes your sensual for the electron configuration so you can pass oer counting from that element number. think back the subshells 1s 2s 2p 3s 3p 4s 3d 4p etc s=2, p=6, d=10, f=14 ......so just keep invent till you reach the number of the element. So eg Selenium (Se) would be- 1s(2) 2s(2) 2p(6) 3s(2) 3p(6) 4s(2) 3d(10) 4p(4) . wholly the numbers in the brackets add up to Seleniums Atomic number. A shorter way of writing it would be [Ar] 4s(2) 3d(10) 4p(4)...If you want to get a full essay, order it on our website: Ordercustompaper.com

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