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23 hours ago · In sum, two people reportedly accused Trump of saying: "I need the kind of generals that Hitler had," and his former chief of staff had also claimed on multiple occasions that the former president ...
The electronic configurations of the elements in group 1: The atoms of all group 1 elements have similar chemical properties and reactions because they all have one electron in their outer...
the main groups are numbered from 1 to 7 going from left to right, and the last group on the right is Group 0. the block in between Group 2 and Group 3 is where the transition metals are...
Sep 1, 2024 · Groups are the vertical columns on the periodic table. There are total 18 vertical columns on periodic table. Hence there are 18 groups. The elements lying in the same groups show similar chemical properties and they also have same number of valence electrons.
Group 2 elements are collectively known as the Alkaline Earth Metals. The outer shell of group 2 elements contains two electrons and is therefore represented by the sub shell s2. Elements in group 2 will lose two electrons to gain a full outer shell of electrons, to form ions with a +2 charge when they react.
We can think about the increasing reactivity moving down Group 2 in terms of ionisation energies; The atoms of Group 2 elements react by losing electrons to form +2 ions; The formation of +2 ions from gaseous atoms requires two ionisation energies; M(g) → M + (g) + e-M + (g) → M 2 + (g) + e-
Jan 23, 2023 · The traditional system for naming the geometric isomers of an alkene, in which the same groups are arranged differently, is to name them as cis or trans. However, it is easy to find examples where the cis-trans system is not easily applied. IUPAC has a more complete system for naming alkene isomers.
