A, B and C are atoms of elements with atomic number Z, Z+1 and Z+2 respectively. If 'B' has octet configuration, the bond formed between 'A' and C predominently is

A , B and C are three elements with atomic numbers 6, 11 and 17 respectively. i) Which of these from ionic bond ? Why ?

A, B, and C are three elements with atomic numbers 6, 11 and 17 respectively : Which of these cannot form covalent bond ? Why ?

A, B, and C are three elements with atomic numbers 6, 11 and 17 respectively : Which of these can form ionic as well as covalent bond ?

If four elements with atomic numbers Z-2, Z-1, Z and Z + 1 are forming isoelectronic ions, the atomic number of the ion having largest size is

Arrangement of electrons in an atom with atomic number (Z) = 5 and valency = 3 is

The atomic numbers of elements A, B, C and D are Z1, Z, Z + 1 and 2 + 2 respectively. If 'B' is a noble gas, choose the correct answers from the following statements Q (1) 'A' has higher electron affinity. Q (2) 'C exists in + 2 oxidation state. Q (3) 'D' is an alkaline earth metal.

The atomic number (Z) of an element is 6. name the element.

The atomic number of elements X,Y and Z are 19.21 and 25 respectively.The number of electrons present in the M shell of these elements follow yhe order

The two elements have their atomic numbers as Z_1 and Z_2 The ratio of the wavelength lambda_1 and lambda_2 corresponding to their K_alpha lines is