<p> The Atom & Periodic Table </p><p>1. ______- the center of the atom 2. ______-Atoms of the same element can have different numbers of neutrons 3. ______-positive charge, are in the center of the atom, determine a substances identity 4. ______- tells you where elements electrons are and determines what an element will react with. 5. ______-Neutral Charge, are in the center of the atom, determine a substances identity 6. ______- outer energy level of atom 7. ______-negative charge, determines an elements reactivity 8. ______- electrons in the outer shell of an atom 9. ______-The building blocks of matter 10. ______- the collection of all known substances in the world</p><p>11. ______- vertical columns; numbered 1–18 (electrons) 12. ______- a substance that can not be broken down into a simpler substance</p><p>13. ______- specific name describing one or more groups 14. ______- This defines what the element is or how many protons the element has 15. ______- left and center part of periodic table, Conduct heat and electricity, Have Luster, Malleable, Ductile, All are solid at room temperature(except mercury) 16. ______- The letter(s) for the element. Could be English or Latin letters 17. ______- right side of the periodic table, Very abundant in nature, Poor conductors of electricity and heat, brittle, many are gases 18. ______- some properties of metals and some properties of nonmetals, They are found along the border between metals and nonmetals, They are semiconductors 19. ______- the total number of neutrons and protons in an element 20. ______- horizontal row on periodic table (# OF SHELLS)</p><p> label diagrams ANSWERS-The Atom & Periodic Table </p><p>1. nucleus______- the center of the atom 2. isotopes______-Atoms of the same element can have different numbers of neutrons 3. protons______-positive charge, are in the center of the atom, determine a substances identity</p><p>4. electron configuration___- tells you where elements electrons are and determines what an element will react with. 5. neutrons__-Neutral Charge, are in the center of the atom, determine a substances identity</p><p>6. shell______- outer energy level of atom 7. electrons______-negative charge, determines an elements reactivity 8. valence______- electrons in the outer shell of an atom 9. atoms______-The building blocks of matter 10. periodic table______- the collection of all known substances in the world 11. groups/families______- vertical columns; numbered 1–18 (electrons) 12. element______- a substance that can not be broken down into a simpler substance 13. family_____- specific name describing one or more groups 14. atomic number______- This defines what the element is or how many protons the element has</p><p>15. metals______- left and center part of periodic table, Conduct heat and electricity, Have Luster, Malleable, Ductile, All are solid at room temperature(except mercury) 16. symbol______- The letter(s) for the element. Could be English or Latin letters</p><p>17. nonmetals______- right side of the periodic table, Very abundant in nature, Poor conductors of electricity and heat, brittle, many are gases 18. metalloids ______- some properties of metals and some properties of nonmetals, They are found along the border between metals and nonmetals, They are semiconductors 19. atomic mass ______- the total number of neutrons and protons in an element 20. periods______- horizontal row on periodic table (# OF SHELLS) </p>