Pollution is caused by industrialization and urbanization solution to pollution are Uh should stop using petroleum vehicles and invent electronic vehicle Public vehicles should be promoted than private vehicles People shouldn’t use harmful gases
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[Ar] 3d10 4s2 4p3 is shorthand, 1s22s22p63s23p63d104s24p3 long hang
Explanation:
The shorthand is made using the lowest & closest noble gas, and picking up where it leaves off as follows, and longhand is made from a followed pattern you can easily find
