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

1/13

Click to flip

13 Cards in this Set

  • Front
  • Back
nucleus
center core of an atom, containing protons and ussualy neutrons
proton
a small positivly charged particle in the nucleus of the atom
neutron
a small particle in the nucleus with no electrical charge
electron
a tiny negatively charged particle that moves around the nucleus of an atom
atomic number
number of protons in the nucleus of an atom
isotope
an atom with the same number of protons and a diffeent number of neutrons from other atoms of the same element
mass number
sum of protons and nutrons in te nucleus
model
in science, a diagram, a mental picture, a mathamatical statement. or an object that helps explain ideas about the natural world
atomic mass
average mass of all the isotopes of the elements
periodic table
is a chart of the elements showing te repeating pattern of the properties
chemical symbol
a one or two letter reprosentation of an element
period
horizontal row of elemements in the periodic table
group
elements in the same vertical collum of the periodic table; also called family