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Atoms
Arrangement of The Periodic Table
Trends in The Periodic Table
Miscellaneous
Trends in the Periodic Table Part 2
100
The electrons in an atom are orbiting in ______ around the nucleus of an atom.
What are shells?
100

Each vertical column on the periodic table is called a(n

What is group/family?

100
Most of the elements in the periodic table are
What are "metals"?
100

Name the following covalent compounds (1-4) and write the chemical formula for compounds 5-7. Remember covalent compounds include ONLY NON METALS that SHARE non paired valence electrons in their outer most shells. The prefix mono is only used in the second element of the compound. See the periodic table below that identifies valence electrons in each group/family (column). 

  1. ClF3
  2. PCl5
  3. SO2
  4. N2O5
  5. CO
  6. carbon tetrafluoride
  7. selenium dichloride
  8. sulfur trioxide




What are...?

  1. chlorine trifluoride
  2. phosphorus pentachloride
  3. sulfur dioxide
  4. dinitrogen pentoxide
  5. carbon monoxide

  6. CF4

  7. SeCl2

  8. SO3

100

Covalent and Ionic bonds

1. Which compounds are covalent?

2. Which compounds are ionic?



What are....?

1. covalent compounds (non metals only): CH4, I2, C4, H2O, 

2. ionic compounds (metals with non metals):BeCl2, KNO3, Fe2O3

200
A student is examining a solid piece of the element sulfur. What is the smallest component that defines this material being sulfur
What is an atom?
200

The horizontal row on the periodic table is called a(n

What is period?

200

Which statement best describes the difference between the elements in group 2 and group 18 in the periodic table?

What is "2 are reactive metals, and 18 are unreactive gases"?

200

Name the following ionic compounds. REMEMBER, ionic compounds do not use the greek prefixes like covelent compounds. Ionic bonds form when a metal (in most cases) loses one or more electrons of their valence shell) and give them to a non metal. See the periodic table below to observe the trend of the unpaired valence electrons that are either lost (+) or gained (-).

  1. CaCl2
  2. AlF3
  3. KCl
  4. MgO
  5. Zinc bromide
  6. Aluminum oxide
  7. Calcium phosphide




What are...

1. Calcium chloride

2. Aluminum fluoride

3. Potassium chloride

4. Magnesium oxide

5. ZnBr2

6. Al2O3

7. Ca3P2

200

Separate the physical and chemical properties of the elements from the list.

appearance

reactivity with other chemicals

texture

color

toxicity

odor

flammability

heat of combustion

oxidation state (number of electrons lost)

boiling point

density

solubility 

oxidation state

chemical stability

What are...?

Physical properties: 

appearance, texture, color, odor, melting point, boiling point, density, solubility 

Chemical properties:

reactivity with other chemicals, toxicity, flammability, heat of combustion, oxidation state, chemical stability

300

What is in the center of an atom called?

What is the nucleus?

300

True/False Elements that are the most "metallic" (most metal like) are farthest to the right on the periodic table.

What is "False"? (Elements that are the most metallic are farthest to the left on the periodic table.)

300

How does the number of electrons in the outer level of the elements change as you move from left to right across the periodic table?



What is "the number of electrons increases"?

300

Barium is in Period 6 and Group 2. How many valence electrons does it have and how many electron shells does it have? (must answer in correct order)

What is "2" and "6"?

300

Transition metals

Which of the following is NOT a property of transition metals?

1. Their ions form colored solutions

2. They have a d electron shell

3. They react with water 

What is

They react with water?

400

An atom of carbon with 6 protons, 6 electrons, and 6 neutrons would have a mass number of

What is 12?

400

True/False The atomic number (# of protons) is usually listed above the element's symbol/name and the atomic mass (# of protons+neutrons) is usually listed below the elements symbol/name.

What is "true"?

400

Why do elements in the same group share similar properties?


What is "they have the same number of electrons in their outer energy level"?

400
Why are the noble gases unreactive?
What is "they have a full outer shell of 8 electrons"?
400

Ionization means how much energy is needed for an element to lose an electron, meaning to become a cation. Look at the 2 table below. Which element has the lowest ionization energy (meaning it loses its unpaired valence electrons without a lot of energy), and which element has the highest ionization energy (meaning, it loses its unpaired valence electrons but with a very high amount of energy).


What is Francium has the lowest ionization energy, it becomes a cation very easily. Fluorine has the highest ionization energy, it is incredibly difficult for it to become a cation?

500

An atom has an atomic mass of 19 and an atomic number of 9. How many neutrons does the atom have? Name this element. 

What is 10 and Fluorine?

500

How do the physical and chemical properties of the elements change?

What is "across each period"?

500

Sodium (Na) is a very reactive alkali metal and Chlorine (Cl) is a very reactive halogen nonmetal. When they combine, they react to form Sodium Chloride (NaCl) which is known as table salt. Which of the following best explains why sodium and chlorine so react so easily?

What is "alkali metals easily give away their single electron in the outer level and halogens only need one electron to fill their outer level"?

500

Balance the following chemical equations:

*** Remember to count the number of atoms in each compound before and after the chemical reaction and include the appropriate coefficients.  

1 . ___ H2 + O2 ---> ___ H2O 

2 . ___ S8 + ___O2 ---> ____ SO3 

3. ____ HgO ---> ____ Hg + ____O2 

4. ____ Zn + ____ HCl ---> ____ ZnCl2 + ___ H2 

5. ___ Na + ___ H2O ---> ____ NaOH + ___  H2 

What are (numbers in bold are coefficients)?

1 . 2 H2 + O2 ---> 2 H2O 

2 . S8 + 12O2 ---> 8 SO3 

3. 2 HgO ---> 2 Hg + O2 

4.  Zn + 2 HCl --->  ZnCl2 + H2 

5. 2 Na + 2 H2O ---> 2 NaOH +   H2 

 

500

Oxidation is defined as the likelihood of an element to lose an electron as seen in the image below. For example, the elements in Group 1 lose 1 electron from the outermost shell. 

Which elements always have an oxidation number of +1?

Which elements always have an oxidation number of -1?

What is the charge of an ion in Group 2?

1. What are the Alkaline metals?

2. What are the Halogens?

3. What is +2 (they lose 2 electrons in their outermost shell)?