Home > Chemistry > Atomic StructureWhich element has the following electron configuration: [Kr] 5s² 4d¹⁰ 5p⁵?A. Iodine B. Astatine C. Xenon D. RadonAnswer: AstatineAdditional Information: This configuration corresponds to Astatine (At), atomic number 85. Subjects: Atomic Structure, ChemistryRelated MCQsWhat is the term for the energy required to change a solid into a gas without going through a liquid phase?What does the term ‘ion’ refer to?What happens to the number of valence electrons as you move down a group in the periodic table?What is the term for the amount of space occupied by an object?What is the principal quantum number for the outermost electrons in sodium (atomic number 11)?What is the principal quantum number for an electron in the outermost shell of a sodium atom?What type of decay involves the emission of a gamma ray?What is the shape of the p orbital?What is the term for the energy change when a substance undergoes a phase change?What did Rutherford’s gold foil experiment demonstrate?Which term describes the probability of finding an electron in a certain region of space?What does the term ‘valence electrons’ refer to?What is the process of a solid turning directly into a gas called?What happens to the boiling point of water at higher altitudes?What are the four fundamental forces in nature?