29 дек. 2015 г. · With increasing amount of electrons, there can be more correlated motion and hence there is a stronger interaction between the molecules and an ...

4 апр. 2013 г. · Atomic radius increases down the group so according to you lattice energy should decrease and so melting point should decrease. – bon. Commented ...

28 авг. 2021 г. · Groups 1 and 2 are held by metallic bonding and the strength of metallic bonding decreases down the group, so this explains the first two trends ...

23 янв. 2024 г. · The covalency in the Group 2 case never appears to reach zero but does decrease with larger ions, so heavier Group 2 chlorides tend to melt at ...

9 июн. 2016 г. · This makes Beryllium crystal structure more covalent. So between layers, the bonds are stronger giving it a higher melting point and boiling ...

10 июл. 2015 г. · So, less energy is required to pull out the outermost electron as we go down the group, hence, gradually melting point decreases down the group.

26 мар. 2015 г. · As interionic distance increases lattice energy decreases hence melting point decreases down the group. Lithium is an exception because of its ...

28 нояб. 2016 г. · The melting point for non metals decreases across a period (ie melting point of nitrogen is higher than oxygen, oxygen's is higher than fluorine, so on).

11 окт. 2016 г. · The answer sheet says it's because there are more valence electrons and a stronger positive charge in group 2 metals.

5 мая 2019 г. · The explanation is that even when atomic radii increases, the metallic bond between atoms decreases and thus lower melting point.