Periodic Table Review

Question 1: Who stated the principle of Periodic Law?

Answer 1: Mendeleev

Question 2: What is periodic Law?

Answer 2: When elements are arranged in order of increasing atomic number, there is a periodic repetition of their physical and chemical properties.

Question 3: What are Valence Electrons?

Answer 3: Electrons in the outermost energy level

Question 4: Elements with the same number of valence have similar ____________________.

Answer 4: Properties

Question 5: What are the vertical columns called?

Answer 5: Groups

Question 6: What are the horizontal rows called?

Answer 6: Periods

Question 7: What group numbers are the main group metals?

Answer 7: Groups 1 and 2

Question 8: What are the main group elements sometimes referred to as?

Answer 8: Representative elements

Question 9: What group number are the alkali metals?

Answer 9: Group 1

Question 10: What group number are the alkaline earth metals?

Answer 10: Group 2

Question 11: What group number are the halogens?

Answer 11: Group 17

Question 12: What group number are the noble gases?

Answer 12: Group 18

Question 13: What elements are the alkali metals?

Answer 13: Lithium Sodium Potassium Rubidium Cesium Francium

Question 14: What elements are the alkaline earth metals?

Answer 14: Beryllium Magnesium Calcium Strontium Barium Radium

Question 15: What elements are the halogens?

Answer 15: Fluorine Chlorine Bromine Iodine Astatine

Question 16: What elements are the noble gases?

Answer 16: Helium Neon Argon Krypton Xenon Radon

Question 17: How many valence electrons do alkali metals have?

Answer 17: 1 valence electron

Question 18: Why can the alkali metals not be found alone?

Answer 18: Because they are so reactive

Question 19: How many valance electrons do alkaline earth metals have?

Answer 19: 2 valence electrons

Question 20: Are halogens metals or nonmetals?

Answer 20: Nonmetals

Question 21: When halogens react with metals what is produced?

Answer 21: Salts

Question 22: How many valence electrons do the halogens have?

Answer 22: 7 valence electrons

Question 23: Why do the noble gases not want to react?

Answer 23: They have 8 valence electrons They have a full outermost electron shell

Question 24: What are the three properties of Metals?

Answer 24: Shiny Conductors Malleable Ductile

Question 25: What does ductile mean?

Answer 25: Can be rolled into a wire

Question 26: What does malleable mean?

Answer 26: Can be pounded out into sheets

Question 27 What group numbers do you find the transition metals?

Answer 27: Groups 3-12

Question 28: What are the properties of nonmetals?

Answer 28: Dull Nonconductors Brittle

Question 29: What are the properties of metalloids?

Answer 29: Semiconductors Can be shiny or dull Can be malleable or brittle

Question 30: What is Ionizations energy

Answer 30: The energy required to remove an electron from an atom. 

Question 31: What is the trend for ionization energy across a period and down a group?

Answer 31: Increases as you move across a period and decreases as you move down a group

Question 32: What is atomic radius?

Answer 32: Half the distance from center to center of two like atoms that are bonded together.

Question 33: What is the trend for atomic radius across a period and down a group?

Answer 33: Decreases as you move across a period and increases as you move down a group.

Question 34: What is electronegativity?

Answer 34: Is a measure of the ability of an atom in a chemical compound to attract electrons.

Question 35: What is the trend for electronegativity across a period and down a group?

Answer 35: Increases as you move across a period and decreases as you move down a group

Question 36: Elements in the same period have the same number of ____________________________________________ _______________________________________.

Answer 36: Occupied energy levels

Question 37: Elements in the same group have the same number of ____________________________________________ _______________________________________.

Question 38 Whose design of the periodic table is this?

Answer 38: Mendeleev

Question 39: Where are the metals located on the periodic table?

Answer 39: To the left of the stair step line.

Question 40: Where are the metalloids located on the periodic table?

Answer 40: Along the stair step line.

Question 41: Where are the nonmetals located on the periodic table?

Answer 41: To the right of the stair step line.