University:
California State University, Northridge
Course:
CHEM 101 | General Chemistry I
Academic year:

2024
Views:

410

Pages:

8
Author:

Samuel K

Chapter 2: Atomic StructureAtDue Feb 13 at 11:59pmPoints 15Questions 15Available Feb 7 at 12am - Feb 13 at 11:59pmTime Limit NoneThis quiz is no longer available as the course has been concluded.Question 11 ptsWhat is the structure of an atom?Protons and neutrons in the nucleus, electrons in orbitalsProtons and electrons in the nucleus, neutrons in orbitalsElectrons and neutrons in the nucleus, protons in orbitalsElectrons in the nucleus, protons and neutrons in orbitals Question 21 ptsHow many protons are there in the nucleus of a carbon atom?4O6812Question 31 ptsWhat is the charge of an electron?PositiveNegativeNeutralVariable Question 41 ptsWhat is the atomic number of an element?CThe number of protonsThe number of neutronsThe sum of protons and neutronsThe number of electronsQuestion 51 ptsHow many electrons can occupy the first energy level of an atom?24816 Question 61 ptsWhat does the mass number of an atom represent?The number of protonsThe number of electronsThe total number of protons and neutronsThe number of neutronsQuestion 71 ptsWhich of the following elements is a noble gas?OxygenNeonSodiumChlorine Question 81 ptsWhat is the electron configuration of oxygen?1s2 252 2p41s2 252 2p61s2 2s22p21s2 2s2 2p8Question 91 ptsHow many valence electrons does phosphorus have?2568 Question 101 ptsWhat is the significance of the periodic table?It organizes elements based on their atomic mass.It organizes elements based on their atomic number.It determines the reactivity of elements.It identifies the isotopes of elements.Question 111 ptsHow many periods are there in the periodic table?4678 Question 121 ptsIn the periodic table, elements in the same group have similar:Atomic massesAtomic numbersElectron configurationsNumbers of neutronsQuestion 131 ptsWhat is the symbol for the element with atomic number 26?CFeNiMnCo Question 141 ptsHow many electrons are in the outermost energy level of an atomwith the electron configuration 2-8-5?25813Question 151 ptsWhat is the relationship between an element's position on theperiodic table and its properties?There is no relationship.Elements in the same period have similar properties.Elements in the same group have similar properties.The periodic table does not provide information aboutproperties.