Electronic Structure of Atoms and Periodic Trends Flashcards
Infrared Radiation has a shorter wavelength than?
Radio Waves
The visible light spectrum covers the wavelength range of:
400 —-> 700
All electromagnetic radiation travels at the same
Velocity
Green light has a wavelength of 510 nm. What is the wavelength in m?
5.1 * 10^-7 m
The energy of a visible photon is higher than that of
Infrared Radiation
The smallest particle of light is called a
Photon
Atomic emission spectra are due to electrons because?
In an atom dropping from one energy level to a lower one
When ultraviolet energy is absorbed by an atom, an electron __
moves from a lower to a higher energy level
The principle quantum numbers have the designation
1,2,3
An s orbital can hold __ electrons
2
A p orbital can hold up to __ electrons
6
A d orbital can hold up to __ electrons
10
The 2s orbital
is spherical and larger than 1s orbital
The maximum numbers of electrons that may occupy the third energy level is
18
According to the Pauli exclusion principle, any orbital can hold at most ___ electrons.
2
The number of electrons in an atom of uranium is
92
The electron configuration of an atom shows
The number of electrons in each energy level
electron configuration of an atom shows ___
the number of electrons in each energy level
What electron sublevel starts to fill after completion of the 5s sublevel?
4d
What element has the electron configuration 1s^2 2s^2 2p^6 3s^2 3p^5?
CI
Iron is a __ block element
D
The abbreviated electron configuration for the iron atom is __.
(Ar) 4s^2 3d^6
The atomic radius of potassium is smaller than the atomic radius of
Sodium
The atomic radius of bromine is larger than the atomic radius of
Chlorine
Valence electrons are located
in the outermost energy level of an atom
In an electron dot structure of an element, the dots are used to represent __
the valence electrons
The ionization of ___ is lower than the ionization energy of ___
chlorine ; flourine
Sulfur is more metallic than chlorine
T
__ orbitals have 7 orbitals in their sublevel
F
___ orbitals are spherical in shape
S
__ orbitals are spherical in shape
P
__ orbitals usually have 4 lobes
D
Electrons in an atom may only have certain energy, because of this, the energy of the electrons in an atoms is said to be ___.
Quantized
A p orbital has ___ lobes.
2
Is an s sublevel spherical??
T
(T or F) Fluorine has an higher ionization energy than sodium
T
An s sublevel has 3 orbitals
False, it only has 1
A p sublevel has 5 orbitals
False, it has 3
Does red light have lower energy than blue light?
T
The shortest wavelength of visible light is violet light
T
