Chemistry
An element 'A' needs 4 electrons to attain stable electronic configuration of the nearest noble gas — Neon. An element 'B' needs 1 electron to attain stable electronic configuration of the nearest noble gas — Argon.
The covalent compound formed between A & B is :
- AB3
- A4B
- A2B4
- AB4
Related Questions
Assertion: Noble gases have stable electronic configuration.
Reason: Atoms of elements other than noble gases have incomplete valence shell.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true and R is false.
- A is false and R is true.
An element 'X' has same number of electrons in its first & in its outermost shell. The electronic configuration of X2+ is :
- 2, 8, 1
- 2, 8
- 2, 8, 2
- 2, 8, 8
State why water has two lone pairs of electrons in it's covalent molecule while ammonia has one lone pair.
Name the following:
- An electrovalent compound formed by transfer of one electron from a metallic atom to a non-metallic atom.
- A covalent hydrocarbon molecule, having four single covalent bonds.
- A covalent molecule, having two lone pair of electrons.
- A covalent molecule having a triple covalent bond.
- A covalent molecule having two shared pairs of electrons in it's molecule.