Atomic Structure 1 (p3)

Parts of an Atom Label the parts of an atom. Choose from: proton, neutron, electron, nucleus, energy level. proton neutron nucleus electron Fill in the blanks. Word bank: atom, positive, negative, neutral, protons, neutrons, electrons, empty space, Subatomic particles are those found inside the atom. Subatomic particles with positivecharge are called protons. Subatomic particles with negative charge are called electrons. Subatomic particles with neutral charge are the neutrons. The mass of an atom is mostly from the protonsand neutrons . The volume of an atom is mostly from the empty space . When the number of electrons and protons are equal, the atom is neutralin charge. For a neutral atom, the number of protons equals to the number of electrons. Use the atom diagram below to answer the following questions. Use numbers and name of the element. There is 1 proton, 0 neutrons, and 1 electron in this atom. The mass number of this atom is 1, and the atomic number is 1, which makes this an atom of the element Hydrogen. Use the atom diagram below to answer the following questions. There are 8 protons, 10 neutrons, and 8 electrons in this atom. The mass number of this atom is 18, and the atomic number is 8, which makes this an atom of the element Oxygen. 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 Number 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 Argon Ar 18 40 18 22 18 Fluorine F 9 19 9 10 9 Silver Ag 47 108 47 61 47 Xenon Xe 54 131 54 77 54 Potassium K 19 39 19 20 19 In the isotope notation, 14 6 C, the number 14 represents _ the number of electrons the number of protons the mass number the number of neutrons How many protons are there in 146 C ? 14 6 8 20 How many neutrons are there in 146 C? 14 6 8 20