Nuclear Chemistry

This is an MCQ-based quiz for GRE on the topic of Nuclear Chemistry.

This includes the study of the physical and chemical properties of elements that are influenced by changes in the structure of the atomic nucleus. It also deals with the energy released from nuclear reactions and their uses.

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What hybrid orbitals are found in a molecule of water?

sp sp3 sp3d sp2

How many electrons can fit in the n=3 electron shell?

Six Fourteen Eight Ten Eighteen

What is the electron configuration of potassium after it obtains a +1 charge?

[Ar]4s2 [Ne]3s1 [Ar]4s1 [Ar] [Ar]4s23d4

An oxygen atom and a fluorine atom have the same electron configuration as neon. Which of the following is true about these two atoms?

Both atoms have the same charge because they both gain the same amount of electrons Both atoms are classified as halogens Fluorine has half the charge of oxygen because it gains half the amount of electrons Oxygen has half the charge of fluorine because it gains half the amount of electrons

A certain transition metal has an electron configuration such that its orbital only has one electron. What would be a valid conclusion about this element?

The identity of the element is chromium and it contains one electron in each of its 3d orbitals This is an invalid electron configuration because 4s orbitals always contain two electrons in transition metals The identity of the element is manganese and it contains one electron in each of its 3dorbitals The identity of the element is manganese and it contains an empty 3dorbital

Which element has the most valence electrons?

Ca As Zn Cu Mg

Which two elements have the same number of electrons in the 3d shell?

Cr and V Mn and Fe Ni and Cu Cr and Mn Co and Ni

An atom with the electron configuration 1s2 2s2 2p6 could be any of the following except _________.

F- Ne Na Mg2+

Which of the following is the correct electronic configuration for vanadium?

[Ar]3d2 4s2 [Ar]3d3 4s2 [Ar]3d4 4s1 [Ar]4s2 4p3

An electron in which of the following orbitals is closest to the nucleus?

Quiz/Test Summary

Title: Nuclear Chemistry

Questions: 10