Question

name______ periodic table packet #1
period______
directions: answer the questions with the proper information using your notes, book, and the periodic table.

1. define a family.______
2. what is a period?______
3. what is the symbol for the following elements.

a. magnesium____ b. potassium____
c. iron____ d. copper____

1. what are the names of the following elements.

a. c____ b. cl____
c. au____ d. sr____

1. what period are the following elements in?

a. he____ b. ge____
c. rb____ d. i____

1. what group are the following elements?

a. sulfur____ b. ca____
c. iodine____ d. fe____

1. give me an atom with the following characteristics.

a. halogen____ b. chaloger____
c. alkali metal____ d. boron____
e. lanthanide series____ f. alkaline earth metal____
g. transition metal____ h. nobel gas____

Explanation:

1. In the periodic table, a family (or group) is a vertical column of elements that have similar chemical properties due to having the same number of valence electrons.
2. A period is a horizontal row of elements in the periodic table. As you move across a period, the atomic number increases by one from one element to the next.
3. The chemical symbols are based on the elements' Latin or common names. Magnesium is Mg, Potassium is K (from kalium), Iron is Fe (from ferrum), Copper is Cu (from cuprum).
4. C is Carbon, Cl is Chlorine, Au is Gold (from aurum), Sr is Strontium.
5. Periods are determined by the electron - shell number. He is in period 1, Ge is in period 4, Rb is in period 5, I is in period 5.
6. Groups are vertical columns. Sulfur is in group 16, Ca is in group 2, Iodine is in group 17, Fe is in group 8.
7. Examples of atoms for each category: a. Fluorine (F) is a halogen. b. Oxygen (O) is a chalcogen. c. Sodium (Na) is an alkali metal. d. Boron (B) is boron itself. e. Cerium (Ce) is in the lanthanide series. f. Calcium (Ca) is an alkaline - earth metal. g. Iron (Fe) is a transition metal. h. Helium (He) is a noble gas.

Answer:

1. A vertical column of elements in the periodic table with similar chemical properties due to the same number of valence electrons.
2. A horizontal row of elements in the periodic table.
3. a. Mg

b. K
c. Fe
d. Cu

1. a. Carbon

b. Chlorine
c. Gold
d. Strontium

1. a. 1

b. 4
c. 5
d. 5

1. a. 16

b. 2
c. 17
d. 8

1. a. F

b. O
c. Na
d. B
e. Ce
f. Ca
g. Fe
h. He