Question : Which element of group 13 has the atomic number 113, and its electronic configuration is [Rn] 5f14 6d107s2 7p1?
Option 1: Gallium
Option 2: Indium
Option 3: Nihonium
Option 4: Thallium
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Correct Answer: Nihonium
Solution : The correct answer is Nihonium.
The shell structure of Nihonium atoms is 2.8.18.32.32.18.3, and they contain 113 electrons. Neutral Nihonium has the electrical configuration [Rn] in its ground state.
Nihonium's term symbol is 2P1/2, and its electronic structure is estimated to be [Rn] 5f14 6d107s2 7p1 (based on that of thallium).
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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 : 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 : 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 : Which of the following is the proper number of electrons in 1 A of current?
Option 1: 6.25 × 1021
Option 2: 6.25 × 1018
Option 3: 6.25 × 1019
Option 4: 6.25 × 1015
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