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Understanding Atoms: Completing the Periodic Table and Identifying Valence Electrons, Exams of Chemistry

Hogeschool West-Vlaanderen (TU)Chemistry

Instructions for completing the periodic table chart, including filling in atomic number, name, atomic mass, and lewis diagrams. It also includes questions to answer in notes, such as identifying elements with complete outer shells, elements with one electron in the outermost shell, and the location of these elements on the table. The document also explains the concept of valence electrons and provides the number of valence electrons for several elements.

Typology: Exams

2021/2022

Uploaded on 08/05/2022

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dirk88 🇧🇪

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____ P =
N =
H E =
____________
____ P =
N =
Li E =
____________
____ P =
N =
Ne E =
_____________
____ P =
N =
F E =
____________
____ P =
N =
O E =
____________
____ P =
N =
N E =
____________
____ P =
N =
C E =
____ P =
N =
B E =
____________
____ P =
N =
Be E =
____________
2 P = 2
N = 2
He E = 2
Helium
4
____ P =
N =
Na E =
____________
____ P =
N =
Ar E =
_____________
____ P =
N =
Cl E =
____________
____ P =
N =
S E =
___________
____ P =
N =
P E =
___________
____ P =
N =
Si E =
_____________
____ P =
N =
Al E =
____________
____ P =
N =
Mg E =
____________
Atomic Number
Atom’s Name
Atomic Mass
Lewis Diagram
pf2

Partial preview of the text

Download Understanding Atoms: Completing the Periodic Table and Identifying Valence Electrons and more Exams Chemistry in PDF only on Docsity!

____

P =N =

H^

E =

____________ ____

P =N =

Li^

E =

____________

____

P =

N =

Ne^

E =

_____________

____

P =N =

F^

E =

____________

____

P =N =

O^

E =

____________

____

P =N =

N^

E =

____________

____

P =N =

C^

E =

____

P =N =

B^

E =

____________

____

P =N =

Be^

E =

____________

P =

N =

He^

E =

Helium 4

____

P =N =

Na^

E =

____________

____

P =N =

Ar^

E =

_____________

____

P =N =

Cl^

E =

____________

____

P =N =

S^

E =

___________

____

P =

N =

P^

E =

___________

____

P =N =

Si^

E =

_____________

____

P =N =

Al^

E =

____________

____

P =N =

Mg

E =

____________

Atomic NumberAtom’s Name

Atomic MassLewis Diagram

Periodic Table Basics

Step 1: Complete the Periodic Table Basics Chart. Your chart will include the element’s: (a) atomic number (b) name (c) atomic mass (d) number of protons, neutrons, and electrons (e) Lewis diagram Step 2: Answer the following questions in your notes.

  1. What is meant by the following statement: An ion has a complete outer shell.
  2. Do all atoms require the same number of electrons to complete their outermost shell? Explain.
  3. Which three elements on your chart have a complete outer shell? Give the name and symbol for each.
  4. What do you notice about the location of the elements in question # 3?
  5. Which elements have only one electron in its outermost shell?
  6. What do you notice about the location of the elements in question # 5?
  7. What do you notice about the number of electrons in the outermost shell as you move from leftto right across a row or period in the chart?
  8. What do you notice about the number of shells each element has as you move from top tobottom of a column or group on the chart?
  9. Elements are organized into families according to their physical and chemical properties. Write the family names above the correct column on your chart. Alkali metals have one valence electron Alkaline Earth metals have 2 valence electrons. Halogens have 7 valence electrons. Noble Gases have 8 valence electrons.
  10. Using the periodic table and your chart, predict the number of valence electrons for eachelement based on its location on the periodic table.

Calcium ___________Shells^ Valence Electrons___________ ChlorineBarium ___________ 6 ______________________ LeadXenon ______________________ ______________________ Potassium ___________ 1