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

1/8

Click to flip

8 Cards in this Set

  • Front
  • Back
Matter
anything that takes up space and has mass
Element
a substance that cannot be broken down to other substances by chemical reactions
Compound
a substance consisting of two or more different elemebts combined in a fixed ratio
Trace Elements
Elements required by an organism in only minute quantities
Atom
the smallest unit of matter that still retains the properties of an element
Mass Number
the sum of protons plus neutrons in the nucleus of an atom
Atomic Mass
the total mass of the nucleus
Radioactive Isotope
an isotope in which the nucleus decays spontaneously, giving off particles and energy