An element 'P' has atomic number 56. What will be the formula of its halide?

An element X has atomic number 19.What will be the formula of its oxide?

An element X has atomic number 19.What will be the formula of its oxide?

(i) Element 'Y' with atomic number 3 combines with element 'A' with atomic number 17. What would be the formula of the compound ? (ii) What is the electronic configuration of an element with atomic number 10 ? What will be its valency?

Element 'Y' with atomic number 3 combines with element 'A' with atomic number 17. What would be the formula of the compound ?

An element has atomic number 34. Its valency will be

An element E has a valency of 4. (i) What will be the formula of its chloride ? (ii) What will be the formula of its sulphide ?

An elements P has atomic no. 13. Write the formula of its oxide

The atomic number of an element is 16. Predict the formula of its chloride