Question : The correct electronic configuration of Cu is:

Option 1: [Ar]3 d⁹ 4 s²

Option 2: [Kr]3 d⁹ s²

Option 3: [Kr]3 d¹⁰ s¹

Option 4: [Ar]3 d¹⁰ 4 s¹

Question : In which group of the Periodic Table will you put the elements with electronic configuration [He]2s²2p⁶?

Option 1: 8

Option 2: 6

Option 3: 18

Option 4: 10

Question : Name the transuranium element with atomic number 106, created by bombarding californium^-249 with oxygen^-18 nuclei.

Option 1: Seaborgium

Option 2: Dubnium

Option 3: Hassium

Option 4: Copernicium

Question : 1 terabytes per second = ______ bytes per second.

Option 1: 2⁴⁰

Option 2: 2¹⁰

Option 3: 2²⁰

Option 4: 2³⁰

Question : What is the value of (2² + 1)(2⁴+1)(2⁸ + 1)(2¹⁶ + 1) .........(2¹²⁸ + 1)?

Option 1: $\frac{2^{256}-1}{2}$

Option 2: $\frac{2^{256}-1}{3}$

Option 3: $2^{256}-1$

Option 4: $\frac{2^{256}-1}{4}$