Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/40

Click to flip

40 Cards in this Set

  • Front
  • Back
Chemistry
The study of matter
and its changes
Matter
Anything that has mass
takes up space.
Atom
The smallest
particle of matter.
Nucleus
Protons and Neutrons
Electron
Cloud
Electrons
Ortiting the Nucleus
Sub-Aomic
Particles
Proton
Neutron
Electron
Proton
A positive charge.
(found in the Nucleus)
Neutron
A neutral charge.
(found in the Nucleus)
Electron
A negative charge.
(Found in the cloud
around the Nucleus)
Chemical
Symbol
(Center)
The Letter that
represents the atom
on the periodic table.
Chemical Symbol
Atomic Number
(Top Right)
The number of
protons/electrons
in the atom.
Chemical Symbol
Atomic Number
(Bottom)
This represents the
number of protons
and neutrons in the atom.
Atomic Types
Ion
Iso tope
Ion
A type of atom
with an electrical charge.
Ion
An atom with an
electrical charge:
Image:
Isotope
An atom with the
same number of
protons (the same
atomic number) but
different numbers
of neutrons.
Groups
of Atoms
Element
Molecule
Compound
Element
A substance that
cannot be decomposed
or transformed into
other chemical substances
by ordinary chemical
processes. An atom of the
same type (not chemically bonded)
Ti Zn Co
Molecule
Two or more atoms
chemically bonded together.
Compound
Two or more DIFFERENT
atoms chemically bonded
together
H20 CO2 HsSO4
Chemical Formula
Two or more capital
letters that indicate
what a substance is
made up of:
Subscript
Coefficient
Subscript
The small number
that only works for
the element to it's
immediate left.
Coefficient
The number in front
of a formula used to
show the number of
molecules/compounds.
Chemical
Equations
Symbols used to show
what happens when
chemicals react.
a) Law of conservation
of matter.
Law of
conservation
of matter
The type and number
of atoms must be the
same on each side of
the equation.
Bohr Model
(Chemical Bonding)
Bohr Model(from 1913)
1. Electrons Orbit
the nucleus in fixed
energy levels.
2. Octet rule
Octet Rule
Part of the Bohr Model
The atoms strive to
have 8 valence electrons
to act like the noble
gases. (Chemically stable.)
Cation
(Chemical Bonding)
An atom with a
positive electron charge.
1. Has lost electrons
2. EX: Na + e-
O
Chemical
Bonding
Bohr Model
Cation
Anion
Ionic Bonding
Covalent Bonding
Anion
(Chemical Bonding)
An atom that has a
negative electrical
charge as gained electrons.
EX:
Ionic Bonding
(Chemical Bonding)
The transfer of electrons between atoms producing opposite electrical charges.
1. Opposites attract
2. EX:
3. Metals + Non-metals
Covalent
Bonding
(Chemical Bonding)
Two or more atoms sharing electrons
1. 2 electrons per bond
2. Non-metal + Non-metal
Acids and Bases
Dissociation
Acid
Base
PH
Dissociation
The breaking apart of
water molecules into
two ions of opposite charge.
Acid
A compund that has
an "H" in front of the
chemical formulation.
1. Dissociates to yeld
(Hydronium) ions.
2. The more ,
the stronger the acid
3. HCI
Base
A compund that has an
"OH" in the end of the
chemical formula.
1. Dissociates to yield
OH (Hydroxide) IOns
2. The more OH, the
stronger the base
PH
Power of Hydrogen
PH Scale
Standard scale for
the relative concentratins
of Hydronium ( )
and Hydroxide ( ) ions.
If the PH Scale
shows more____________
is it more acetic
or more basic?
More acetic
If the PH scale
shows fewer ______________
is it more acetic
or more basic?
More basic