Flashcards
Chemistry Chapter 1
Cards in this deck (23)
- 1Where are the following located? a) Proton b) Neutron c) Electrona) Nucleus
b) Nucleus
c) Around the nucleus - 2Atomic MassSum of protons and neutrons.
- 3IsotopesAtoms of the same element that have different mass numbers.
- 4Atomic WeightAverage mass of the naturally occurring isotopes.
- 5As an electron moves away from the nucleus, its energy ...Increases
- 6Atomic Absorption SpectrumFor an electron to jump from lower energy level to higher one, it must absorb an amount of energy = to the difference between the two levels.
- 7Heisenberg Uncertainty PrincipleIt is impossible to know an electron's position and momentum at the same time.
- 8Principal Quantum Number (n)Describes average energy of the shell.
- 9Azimuthal Quantum Number (l)Describes the subshell within a given energy level (s,p,d,f)
- 10Magnetic Quantum Number (m sub l)Specifies the orbital of the subshell.
- 11Spin Quantum Number (m sub s)Indicates the spin.
- 12(n + l) RuleThe lower the sum of values for n + l, the lower the energy level of the subshell.
- 13ParamagneticMaterials have unpaired electrons that align with magnetic fields attracting them to the magnet.
- 14DiamagneticMaterials have all paired electrons, which cannot be easily realigned; they are repelled by magnets.
- 15Valence Electrons in Representative Elements (1,2, and 13-18) are found in which orbitals?s and/or p
- 16Valence Electrons in Transition Elements are found in which orbitals?s and either d or f
- 17Planck's Constant6.626 x 10^-34
- 18Equation for Energy of a quantumE = hf
h = Planck's constant
f = frequency of radiation - 19Equation of angular momentumL = nh/2(pi)
n = Principle Quantum Number
h = Planck's Constant - 20Equation for photon's energy released by electron moving to a lower energy state.E = hc/wavelength
h = Planck's Constant
c = speed of light in a vacuum (3.00x10^8m/s) - 21Equation for energy of the electronE = - R sub h/n^2
R sub h = Rydberg unit of energy (2.18 x 10^-18)
n = principle quantum number - 22Maximum # of electrons in a shell2n^2
- 23Maximum # of electrons within a subshell4l+2
Information
- Description
- AS - Level Chemistry Flashcards on Chemistry Chapter 1, created by Jamie Milbrandt on 14/06/2016.
- Created by
- Jamie Milbrandt
- Views
- 0
- Rating