Atomic Structure

Subatomic Particles Match the definition to the correct term. positive charge proton negative charge electron neutral charge neutron center part of the atom nucleus tiny particles atoms Where do you find me? Sort where each subatomic particle would be found in the atom. Inside the Nucleus protons neutrons In the Orbitals electrons A proton is... positively charged, with a smaller mass than an electron positively charged, with a larger mass than an electron negatively charged, with a smaller mass than an electron negatively charged, with a larger mass than an electron The atomic number of an element is always equal to: # of protons # of neutrons atomic mass A lithium nucleus contains 3 protons and 4 neutrons. What is its atomic mass? 7 4 3 1 Model of an atom Click each subatomic particle and label it. neutron proton electron valence electron How many protons are there in the atom below? How many neutrons are there in the atom below? How many electrons are there in the atom below? What is the mass of the atom below? Element Square. A. Underline the element name.B. Circle the element symbol.C. Draw a star next to the atomic number.D. Draw an arrow next to the atomic mass. An atom has a mass of 44 and 21 electrons. Fill in the chart given this information. Protons 21 Neutrons 23 Atomic Number 21 Atomic Structure Table Use a periodic table to help you fill in the chart below. Remember:Atomic Number = # of protons = # of electronsMass Number = # of protons + # of neutrons Element Symbol Atomic # Mass Number # of Protons # of Neutrons # of Electrons Beryllium Be 4 9 4 5 4 Calcium Ca 20 40 20 20 20 Iron Fe 26 56 26 30 26 Silicon Si 14 28 14 14 14