2026 · Q104
Which one of the following statements is correct?
general-sciencechemistry
- AThe number of electrons in alpha (α) particle is 2.
- BThe coordination number of EDTA is 6.
- CThe charge of beta (β) particle is +2.
- DBoth carbon and silicon form ionic compounds.
Explanation
An alpha particle is a helium nucleus (2 protons, 2 neutrons) with no electrons — A is wrong. EDTA is a hexadentate ligand with coordination number 6 — B is correct. A beta particle (electron) carries charge −1, not +2 — C is wrong. Carbon and silicon form predominantly covalent, not ionic, compounds — D is wrong. Hence only statement B is correct.