2s2 Study guides, Class notes & Summaries

TEAS ATI 7 Exam Questions and Answers 100% Pass How many valence electrons does an atom have if the atom has an atomic number of 10? -Answer-8 valence e- because it ends with 2s2 2p6 How many valence electrons will an atom have if the atom is located in Group VIA of the periodic table? -Answer-VI=6 An atom located in which of the following groups on the periodic table of elements will most likely gain electrons from another atom in a chemical reaction? -Answer-The higher the valence elec...

Chemistry 103 Final Exam SOLUTIONS 100% CORRECT ANSWERS Tin's atomic number is 50. This means that all tin atoms have? a. 50 protons in the nucleus b. 50 total neutrons in the nucleus c. a total of 50 subatomic particles in the nucleus d. 50 electrons - ANSWER a after the 4s subshell of an atom is filled with electrons, the next electron added will enter the... a. 3d subshell b. 4d subshell c. 4p subshell d. 5s subshell - ANSWER a in which of the following pairs of elements are ...

Test Bank of Organic Chemistry 4th Edition By Janice Smith Chapter 1-31| All Full and Revised | Verified Complete Guide. Chapter 1: Structure and Bonding 1. What is the ground-state electronic configuration of a carbon atom? A) 1s2 , 2s2 , 2p5 B) 1s2 , 2s2 , 2p2 C) 1s2 , 2s2 , 2p6 D) 1s2 , 2s2 , 2p4 2. What is the ground-state electronic configuration of a fluorine atom? A) 1s2 , 2s2 , 2p2 B) 1s2 , 2s2 , 2p3 C) 1s2 , 2s2 , 2p4 D) 1s2 , 2s2 , 2p5 3. What is the g...

Organic Chemistry, 7e (Bruice) Chapter 1 Remembering General Chemistry: Electronic Structure and Bonding 1) Atoms with the same number of protons but different numbers of neutrons are called . Answer: isotopes Section: 1-1 2) Which of the following elements does this electronic configuration represent? 1s2 2s2 2p5 A) F B) C C) N D) Al E) O Answer: A Section: 1-2 3) How many unpaired electrons are present in the isolated carbon atom (atomic number = 6)? A) none B) one C) two D)...

Chapter 1 Carbon and Its Compounds CHECKPOINT PROBLEMS Practice Problem 1.1 a) S — 1s2 2s2 2p6 3s2 3p4 b) Cl — 1s2 2s2 2p6 3s2 3p5 c) Na+ — 1s2 2s2 2p6 1-2 Copyright © 2018 Nelson Education Limited Practice Problem 1.2 a) Count valence electrons. Build a basic bonding framework and account for electrons used. Add remaining electrons and check for formal charges. The molecule has a lone pair on the nitrogen. All other electrons are bonding electrons. b) Count valence...

AQA 2023 AS CHEMISTRY 7404/2 Paper 2 Organic and Physical Chemistry questions and answers verified What is the equation linking mass moles and MR? Mass=moles * MR What is the definition of Ar (relative atomic mass)? The average mass of an atom of an element compared to the mass of one twelfth of carbon 12. What does Mr stand for? Relative molecular mass Define relative isotopic mass. The mass of an isotope of an element compared to the mass of one twelfth of the mass of carbon 12 ...

A Level Physical Chemistry AQA questions and answers 100% verified. 1 - ANS.relative mass of a proton 1 - ANS.relative mass of a neutron 1/1840 - ANS.relative mass of an electron +1 - ANS.relative charge of a proton 0 - ANS.relative charge of a neutron -1 - ANS.Relative charge of an electron strong nuclear force - ANS.How is the nucleus held together nuclear force - ANS.is the nuclear force or electrostatic force stronge...

The positive charge of an atom is concentrated in a small region. Correct Answer-Which of the following is a correct interpretation of the results of Rutherford's experiments in which gold atoms were bombarded with alpha particles? 1s2(2s2)2p6(3s2)3p6(4s2) Correct Answer-What is the correct ground state electron configuration for Fe? Mg<Ca<Rb<Cs Correct Answer-Based on their positions in the periodic table, list the following atoms in order of increasing radius: Mg, Ca, Rb, Cs ...

Give the full electron configuration of an Al atom and a Cr3+ ion : 1s2 2s2 2p6 3s2 3p1 1s 2s2 2p6 3s2 3p6 3d6 Deduce the formula of the ion that has a charge 2+ with the same electron : Sr2+ Deduce the formula of the compound that contains 2+ ions and 3- ions that both have the same electron configuration as argon : CaP Deduce which of Na+ and Mg2+ is the smaller ion 2 marks : Mg 2+ Both have the same number of shielding however Mg2+ has more protons so higher nuclear charge and so...

Give the full electron configuration of an Al atom and a Cr3+ ion : 1s2 2s2 2p6 3s2 3p1 1s 2s2 2p6 3s2 3p6 3d6 Deduce the formula of the ion that has a charge 2+ with the same electron : Sr2+ Deduce the formula of the compound that contains 2+ ions and 3- ions that both have the same electron configuration as argon : CaP Deduce which of Na+ and Mg2+ is the smaller ion 2 marks : Mg 2+ 2 Both have the same number of shielding however Mg2+ has more protons so higher nuclear charge and...