Advertisements
Advertisements
प्रश्न
Elements A, B and C have atomic number 17, 19 and 10 respectively.
State which one is a non-metal.
Advertisements
उत्तर
Electronic configuration of element A = (2, 8, 7) at atomic no. 17
∴ Element A has 7 electrons in its outermost shell it is a non-metal.
संबंधित प्रश्न
Define a chemical bond.
Mention the basic tendency of an atom which makes it to combine with other atoms.
Give electron dot diagram of the following:
Magnesium chloride
Separate the following compounds into three categories - ionic, polar and covalent compounds; N2, NH4Cl, NH3, NO, NH4NO3, NCl3.
A Compound 'X' consists of only molecules. Hence 'X' will have
How are X-rays produced?
State the type of bonding in the following molecules.
Calcium oxide
In the formation of magnesium chloride (by direct combination between magnesium and chlorine), name the substance that is oxidized and the substance that is reduced.
The element that would form cation due to the loss of electrons during the chemical reaction is ______.
Match the following:
| 1. | Atomic bond | a. | Oxygen and hydrogen |
| 2. | Atoms with different electronegativities | b. | acceptor bond |
| 3. | An atom that accepts electron pair | c. | covalent bond |
| 4. | Rusting of iron | d. | donor atom |
| 5. | An atom that provides electron pair | e. | oxidation |
| f. | ionic bond |
