General Periodic Table Questions
Valence Electrons
Periodic Table Trends
Stability of an Element
Families on the Periodic Table
100
The horizontal rows on the periodic table are called.....
Periods
100
In the Bohr model of the atom, where are the electrons and protons located?
Protons = nucleus
Electrons = orbiting the nucleus (protons)
100
Ability of an atom to attract an electron
Electronegativity
100
Elements are stable if they have a ________________
Full octect
100
Group 1
Alkali Metals
200
Type of element that is a good conductor of heat and electricity
Metals
200
How many valence electrons does chlorine have?
7
200
The energy required to remove an electron from an atom
Ionization Energy
200
Is the following element stable or unstable, and give a reason: Kr
Stable, has 8 valence electrons
200
Group 2
Alkaline Earth Metals
300
Vertical column on the periodic table
GroupsNumber
300
How many MORE valence electrons would Nitrogen need to become stable?
3
300
As you go from left to right on the periodic table, atomic radius generally......(increases/decreases)
Decreases
300
Why are the noble gases stable? What makes them stable? Will these elements react with any other element? Why or why not?
Long answer
300
Group 8
Noble Gasses
400
What category (metals, nonmetals, metalloids, gases, liquids, etc.) includes the majority of the elements?
Metals
400
How is sodium going to become stable?
Getting rid of 1 electron
400
Which of the following elements have the lowest electronegativity value? Then, state why.
a. Cesium
b. Calcium
c. Neon
d. Fluorine
C. Neon
400
What makes the halogens so reactive? How do these elements become stable?
Long answer
400
Group A
Transition Metals
500
Give an example of elements that belongs to the following families:
1. Alkali Metals
2. Halogens
3. Noble Gases
Answers will vary
500
Explain how an element such as potassium can become stable by removing an electron, instead of gaining electrons
Their outermost is filled (2 electrons in the first ring means it is stable)
500
Describe the trend of ionization energy as you go from left to right across the periodic table, and why that is
As you go from left to right, you get more valence electrons. The closer an element gets to 8 valence electrons, the more energy it requires to take it away since it is close to a full octect
500
Who is more stable: C or Li. Give a reason
C; closer to 8 than Li
500
Group B
Lanthanide Series