Periodic Table Review 1. Atoms in GROUPS/FAMILIES have similar ______________________. A. Atomic...

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

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• 3. Atomic number ______________________as you move across a period from left to right.

• INCREASES

Periodic Table Review

4. An element’s identity is determined by the number of ______________________in the nucleus.

5. PROTONS

Periodic Table Review

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

LEFT

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

• RIGHT

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7. On the Periodic Table, where are the metalloids found in relation to the zig-zag line? ______________________

TOUCHING, ADJACENT

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8. Which family (give the number and the name)is made up entirely of gases____________________?

18, NOBLE GASES

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9. Which family/group is non-reactive (does not combine with any other elements?)_______________

NOBLE GASES

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10. Which family/group number contains the MOST REACTIVE METALS? ______________________.

GROUP 1

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11. Which family/group number contains the MOST REACTIVE NON-METALS? ______________________.

GROUP 17, HALOGENS

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

VERTICAL (UP AND DOWN)

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• 13. Periods are found in (vertical or horizontal?) ______________________ rows across the Periodic Table.

• HORIZONTAL/SIDE TO SIDE

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14. Valence electrons are located on the ___________________ energy level.

OUTERMOST

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15. 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

16. 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

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

REACTIVITY

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

ATOMIC NUMBER

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19. Atoms can only hold _____ electrons in their first shell.

2

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20. The mass number of an atom is the number of Protons + ______________________.

NEUTRONS

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21. The mass of the atom is found by adding ONLY the particles in the ______________________.

NUCLEUS

Periodic Table Review22.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

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23. How many protons does sodium have, based on its atomic number? ______________________.

11

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24. How many neutrons does an atom of sodium have? (subtract the number of protons from the atomic mass [rounded] on the chart)_________________12

25.An atom has 3 protons. A.What element is it?_______________.B. What family is it in? ____C. What period is it in? ____D.How many Valence electrons?___E. How many energy levels? Li, 1, 2, 1, 2

Periodic Table Review26.An atom has 18 protons. A.What element is it?

______________________.B. What group is it in?____C. What period is it in?____D.How many valence electrons?__E. How many energy levels?

Argon, 18, 3, 8, 3

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27. Elements with SIMILAR PROPERTIES will be found in the SAME ______________________.

GROUP/FAMILY

Periodic Table Review28. Complete the Venn Diagram below by putting the

number for each element into the correct place in the Venn Diagram.

A. atomic number

B. atomic mass

C. Number of energy levels

D. 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!!!!!! ______________________.