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What are the examples of the electronic configuration belongs to group IIa?
Antonethjr
Beryllium- 1s2, 2s2 or [He] 2s2
Magnesium- 1s2, 2s2, 2p6, 3s2 or [Ne] 3s2
Calcium- 1s2, 2s2, 2p6, 3s2, 3p6,4s2 or [Ar] 4s2
Strontium- 1s2, 2s2, 2p6,3s2,3p6, 4s2, 3d10, 4p6,5s2 or [Kr] 5s2
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Why are Group 1 and Group 2 elements found in many compounds but not Group 18 elements?
group 18 has completely filled electronic configuration and hence are stable. group 1 and group 2 have 1 and 2 electrons respectively in their valence shells and needs to lose these to attain completely filled electronic configuration. hence they are reactive.
Why is the noble gases a group of un-relative elements?
because they have completely filled electronic configuration.
What is the name and number of the group to which argon belongs?
It is in Group O or Group 8. Also known as noble gas, they do not react with other elements as they do not have to react to get a stable configuration.
What is magnesium's position in the periodic table?
The electronic configuration of Mg is 2,8,2, there are three electronic shells so it belongs to 3rd period, due to presence of 2 electrons in last shell it is in II group (II-A) of periodic table.
What do the Group IA atoms have to do to become a noble gas configuration?
They have one valence electron. If this electron is lost, the atoms form cations with the electronic configuration of the nearest noble gas.
How does the electronic configuration of sodium shows the group and period in the periodic table?
The electronic configuration of sodium is [Ne]3s1. Sodium has one valence electron. And it belongs to group 1. The valence electron is in 3s orbitals and it tells that sodium is a s-block element and is in period 3.
Why is hydrogen grouped with elements in group 1a?
valence electrons and electronic configuration.
Why is hydrogen placed with the element in group 1a?
valence electrons and electronic configuration.
How does electronic configuration of an atom relate to its position in the modern periodic table?
The outer electron in the electronic configuration give idea of the group in the Modern Periodic Table & also period.
Mention the General electronic configuration of nitrogen group elements?
these elements have 5 electron in the valence shells and have configuration of ns np5
Which family of elements is characterized by an ns2 np5 valence configuration?
Elements that have configuration of ns2np5 are members of the Halogen group(Group VIIA). They are, Fluorine, Bromine, Iodine and Astatine.
Why are Group 1 and Group 2 elements found in many compounds but not Group 18 elements?
group 18 has completely filled electronic configuration and hence are stable. group 1 and group 2 have 1 and 2 electrons respectively in their valence shells and needs to lose these to attain completely filled electronic configuration. hence they are reactive.
What is distinctive about the electronic configuration of the group 2 elements?
They all have 2 electrons in their outer shells.
Why is the noble gases a group of un-relative elements?
because they have completely filled electronic configuration.
Why the elements in group 3A and 6A dips in ionization energy?
Beacause of electronic configuration (M.O.T)
What is the electron arrangement in an atom of magnesium and which group of the periodic table does it belong to?
Magnesium belongs to group-2. Its configuration is 2 8 2.
What elements lack a noble gas electron configuration?
Only group 18 elements have noble gas configuration. All other elements lack a noble gas electronic configuration.
