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

1/15

Click to flip

15 Cards in this Set

  • Front
  • Back
The science of structure and interactions of matter
Chemistry
Anything that occupies space and has mass
Matter
Amount of matter a substance contains
Mass
Force of gravity acting on a mass
Weight
Substances that cannot be split into simpler substances by ordinary chemical means
Chemical Elements
Letter abbreviations are called...
Chemical Symbols
What 4 elements make up 98% of body weight?
Oxygen (O), Carbon (C), Hydrogen (H), Nitrogen (N)
Units of matter of all chemical elements
Atoms
Atoms consist of a ______, which contains positively charged_______ and uncharged __________, and negatively charged __________.
Nucleus, Protons, Neutrons, Electrons
The number of _______ in an atom of a neutral charge always equals the number of _______.
Neutrons, Protons
The number of protons in the nucleus of an atom
Atomic Number
An atom that has a positive or negative charge due to having unequal numbers of protons and electorons
Ion
When 2 or more atoms share electrons, the resulting combination
Molecule
Substance the can be broken down into two or more different elements by ordinary chemical means
Compound
The atoms of a molecule are held together by forces of attraction
Chemical bonds