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up a group and from left to right across a period, Arrange the following atoms in order of increasing atomic radius: We look up 21 on the periodic table and the element with the electron configuration of 1s2 2s2 2p6 3s2 3p6 3d1 4s2 is Scandium (Sc). This handy chart compiles the electron configurations of the elements up through number 104. Which of the following elements has the lowest electronegativity? What element has the electron configuration of 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1? Q: An element with the electron configuration [noble gas]ns2(n - 1)d10np3 has _____ valence A: The electrons which are present in the outer most shell of the element is known as valence Q: Write the electron configurations for the elements below. 1s22s22p63s23p64s23d104p65s2, Identify the element that is represented by the following electron configuration. To Learn how to Write Electronic Configurations, Detailed Explanation, Filling of orbital with FAQs, Visit BYJU'S for detailed explanation. Statement 2: In the periodic table atoms of transition elements 1s, 2s, 2p, 3s,and 3p orbitals are completely filled in the ground state. To which group of metals in the periodic table does it belong? a. Kr 5s24d6 b. Ne 3s23p4 c. Xe 6s24f145d7 d. Kr 5s24d105p3, Determine the element to below-abbreviated electron configuration refers. Answer (1 of 2): First of all, the number preceding the name of an electronic sub-level (s, p, d, ) is the principal quantum number n. The highest present in this configuration is . The ________ have the most negative electron affinities. View the full answer. CHEM 14111 Chapter 7 Flashcards | Quizlet This category only includes cookies that ensures basic functionalities and security features of the website. If the path length difference is as found from part (a), through which output port would light of wavelength 3=1551.6nm\lambda_3=1551.6 \mathrm{~nm}3=1551.6nm exit the interferometer? 3. Solved (1) What is the element with an | Chegg.com 1s22s22p63s23p64s2, Identify the neutral element represented by this excited-state electron configuration, then write the ground-state electron configuration for that element. The atomic number is the number of protons in the nuclei of the atoms of an element. How many unpaired electrons are present in the ground state of a phosphorus atom? This is the same as the number of protons.