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The atomic and ionic radii of Li are very small. Therefore, the nuclear attraction is strong compared to the rest of the alkali metals, which leads to a greater polarising power in Li ion, and the formation of covalent bonds.______________________________
A bound that is formed by the sharing of electrons between metal and non metal is called a covalent compound
A covalent compound is a compound formed between 2 non metals when the atoms are so close that the shells overlap each other and the electrons are satisfied to complete the valence shell of electrons.
A water molecule, abbreviated as H2O, is an example of a polar covalent bond. The electrons are unequally shared, with the oxygen atom spending more time with electrons than the hydrogen atoms. Since electrons spend more time with the oxygen atom, it carries a partial negative charge.
answer: they have high ionisation enthalpies.
They have high ionisation enthalpies.
So, they prefer to form covalent bonds
Because its atomic radius is very smaller than other elements in s - block. By its smaller radius the attraction between electrons and nucleus are more (nuclear attraction). So its covalent characters is more that's why these 2 elements form covalent bonds.
Please mark it as a brainliest answer
, Magnesium has 12 electrons, and its electronic configuration can be written as 2,8,2. Thus Magnesium has two electrons in its outermost orbit or it can be said that Magnesium has 2 valence electrons.
, each Chlorine atom has 17 electrons and its electronic configuration can be written as 2,8,7. Thus each Chlorine atom has seven electrons in its outermost orbit or it can be said that each Chlorine has 7 valence electrons.
Magnesium wants to give away its two valence electrons to complete its octet by having 8 electrons in its outermost orbit attaining the electronic configuration of its nearest inert gas Neon. And each chlorine atom wants to complete its octet by adding one more electron in its outermost orbit so that it can have 8 electrons in its outermost orbit attaining the electronic configuration of its nearest inert gas Argon.
So, we see that Magnesium wants to lose two electrons and each Chlorine atom wants to add one more electron in their outermost orbit
Thus, Magnesium transfers its two electrons to two Chlorine atoms (one electron to each Chlorine atom) and thus Magnesium obtains +2 charge and each chlorine atom acquires −1 charge and ionic bonds are formed between the atoms of the molecule.
An eletrovalent compound or ionic compound is formed when one atom in the compound transfers its electrons from itself to its neighboring atom.
, Magnesium transfers its two electrons to its neighboring chlorine atoms, and forms two ionic bonds between the atoms.
is an electrovalent compound or an ionic compound
x is aluminum
it will form ionic compound with chlorine which is y here
z is sodium