Atomic structure quiz review Flashcards

Terms Definitions
4 bonds
"P" orbitals
dumbell shaped
Has no charge
Symbol for atomic number
Has no positive charge
Electronegativity (Where)
Highest for Fluorine
Has a positive charge
neutral particle of an atom
a negatively charged subatomic particle
Energy Levels are also called?
Ground state
The most stable electron configuration
electron cloud
has 4 main energy levels
the number of complete wavelengths that pass a point in a given time
(chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
dense center core of an atom
Number of Neutrons
Mass number- Atomic number
what is represented by the atomic number?
energy levels
the possible energies that electrons in an atom can have
neutrons and protons
2 particles found in nucleus
a vertical group the the periodic table
A (+) Charged Plate
Attracts the cathode ray
An atom that lost or gained electrons.
chemical stability
when the valence shell is filled
the amount of matter in an object
The total number of these determines the atomic number
"Plum Pudding" model: atom a mass of positive charge with negative charges dispursed throughout
atom with the same number of protons but different numbers of neutrons
atomic number
the order of an element in Mendeleyev's table of the elements
created the model that we now use today
J.J. Thomson's Model
Atom as negative charges scattered through out a ball of positive charge
A form of matter that cannot be separated into simpler substances by ordinary chemical methods.
The reason scientist developed notation system
To differentiate between isotopes
mass number
the total number of protons and neutrons in the nucleus of an atom
an atom of carbon 12 contains 6 protons and 6 neutrons
gold foil experiment
projected alpha particles at thin gold foil surrounded by ZnS screen that sparked when struck by alpha particles
Atomic Mass
the number of protons plus the number of neutrons an atom of an element has
cathode ray tube
device used by physicists to electrify metals, leading to the discovery of protons and electrons
Electromagnetic radiation
any kind of radiation that consists of alternating electric and magnetic fields, characterized by its wavelength
Mass of Electron
Is about 1/1836 that of a proton.
when an atom loses an electron when neutral it becomes a(n)
a cation
What is the location of Electrons in the atom?
Outside Nucleus
formula to find number of neutrons
atomic mass - atomic number
an ionic compound has a ______ melting point
high (melting point)
discontinuous theory of matter
all matter is made up of tiny particles, which are separated by spaces.
C Atom Mass #
= 12 because 6 protons + 6 neutrons
part 3 of daltons atomic theory
all atoms of different elements are different
Explain the statement proton gives an atom its identity. and a neutron gives an atom its personality.
The proton indicates its atomic number which identifies the element it is, and the neutron gives it personality because it shows whether its a regular atom or is its an isotop
s, p, d, f
Values of (L) of 0, 1, 2, and 3 refer to sublevels, which are, in
turn, designated by the letters BLANK, BLANK, BLANK, and BLANK respectively.
Determining Atomic Mass Based on relative Abundance
- You must know 3 values:
- The # of stable isotopes of the element
- The mass of each isotope
- The natural percent abundance of each isotope
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