Chemistry Review

Subatomic Particles Match the Subatomic Particle to its description. Proton Positively charged, found in the atom's nucleus, 1amu Nuetron No charge (neutral), found in the atom's nucleus, 1amu Electron Negatively charged, found outside of the nucleus, 0 amu Atomic Structure Fill in the names of each part of the atom. Proton Neutron Electron Fill in the missing words in the definitions below. - An element consists of one type(s) of atom.- A compound contains two or more elements joined together.- A pure substance contains only one kind of particle. Pure substances include both compounds and elements.- An atom is the most basic building block of all matter. Sort the following items into their correct categories. Element Argon (Ar) Helium (He) Compound Water (H2O) potassium chloride (KCl) Draw a model of an ELEMENT below. Draw a model of a COMPOUND below. Draw a model of a LITHIUM atom below that has 3 protons, 4 neutrons, and 3 electrons. Elements Match the element to its correct description. It would be good for you to look up the periodic table on your phone or another tab. Carbon Has 6 protons Flourine Atomic # is 9 Be Has 4 protons Mg Atomic # is 12 Use the element square above to find the following: Atomic #: 17Atomic Mass: 35.453 # of Protons: 17# of Neutrons: 18# of Electrons: 17 What is most of an atoms' atomic mass? The Nucleus The Electron Cloud An atom does not have a mass How can you determine an atoms's atomic mass? It cannot be determined Add the protons and electrons together Add the protons and neutrons together Add the electrons and neutrons together How many valence electrons does an atom need to have to be stable? 0 1 4 8 What determines an atoms identity? Electrons Protons Neutrons Atomic Mass