Periodic Table Review 1. Atoms in GROUPS/FAMILIES have similar ______________________. A. Atomic numbers B. Masses C. Properties D. Numbers of energy shells Properties

Periodic Table Review 2. Atoms next to each other in a PERIOD will be more similar in _____________ or proton number than anything else. MASS

Periodic Table Review 3. Atomic number ______________________as you move across a period from left to right. INCREASES

Periodic Table Review An element’s identity is determined by the number of ______________________in the nucleus. PROTONS

Periodic Table Review On the Periodic Table, metals are found on the ______________________of the zig-zag line. LEFT

Periodic Table Review 6. On the Periodic Table, non-metals are found on the ______________________of the zig-zag line. RIGHT

Periodic Table Review On the Periodic Table, where are the metalloids found in relation to the zig-zag line? ______________________ TOUCHING, ADJACENT

Periodic Table Review Which family (give the number and the name)is made up entirely of gases____________________? 18, NOBLE GASES

Periodic Table Review Which family/group is non-reactive (does not combine with any other elements?)_______________ NOBLE GASES

Periodic Table Review Which family/group number contains the MOST REACTIVE METALS? ______________________. GROUP 1

Periodic Table Review Which family/group number contains the MOST REACTIVE NON-METALS? ______________________. GROUP 17, HALOGENS

Periodic Table Review 12. Families/Groups are found in ______________ (vertical or horizontal?) columns on the Periodic Table. VERTICAL (UP AND DOWN)

Periodic Table Review 13. Periods are found in (vertical or horizontal?) ______________________ rows across the Periodic Table. HORIZONTAL/SIDE TO SIDE

Periodic Table Review Valence electrons are located on the ___________________ energy level. OUTERMOST

Periodic Table Review The group numbers at the top of each vertical column are clues to the number of Valence electrons. Family 1 all have ___ valence electron, while family 2 all have ____ valence electrons.

Periodic Table Review In groups 13-18, you subtract ___ from the family number to find the number of valence electrons. Or just use the A numbers at the top of the group! 10

Periodic Table Review Valence electrons determine which elements an atom will combine with, and how easily they will combine. This is known as an element’s ______. REACTIVITY

Periodic Table Review As you move down the Periodic Table from top to bottom, one TREND is that atoms increase in____________________. ATOMIC NUMBER

Periodic Table Review Atoms can only hold _____ electrons in their first shell. 2

Periodic Table Review The mass number of an atom is the number of Protons + ______________________. NEUTRONS

Periodic Table Review The mass of the atom is found by adding ONLY the particles in the ______________________. NUCLEUS

Periodic Table Review Remember that in a model, the number of protons neutrons in the nucleus will add up to the same mass number (rounded to the nearest whole number) found in the atom’s square on the periodic table. SO… What is the atomic mass of Sodium (Na) on the periodic table _____________ 23

Periodic Table Review How many protons does sodium have, based on its atomic number? ______________________. 11

Periodic Table Review How many neutrons does an atom of sodium have? (subtract the number of protons from the atomic mass [rounded] on the chart)_________________ 12

An atom has 3 protons. What element is it?_______________. What family is it in? ____ What period is it in? ____ How many Valence electrons?___ How many energy levels? Li, 1, 2, 1, 2

Periodic Table Review An atom has 18 protons. What element is it? ______________________. What group is it in?____ What period is it in?____ How many valence electrons?__ How many energy levels? Argon, 18, 3, 8, 3

Periodic Table Review Elements with SIMILAR PROPERTIES will be found in the SAME ______________________. GROUP/FAMILY

Periodic Table Review Complete the Venn Diagram below by putting the number for each element into the correct place in the Venn Diagram. atomic number atomic mass Number of energy levels Number of valence electrons Potassium Arsenic

Periodic Table Review 29. Test Hint: Read ALL information in charts, paragraphs and diagrams BEFORE trying to answer a question. Read the question first, then review ALL the information. Don’t just select an answer based on the first matching word you see!!!!!! ______________________.