Organization of Periodic Table
In the modern Periodic Table, the elements are arranged in order of increasing __________________________.
What is Atomic Number
Which symbol represents an alkaline earth element?
Li Fe K Mg Kr
What is Mg
Write the Electron Configuration of Boron?
What is 1s22s22p1
What is the trend for the atomic radius down a group?
What is Increasing
How many valence electrons does Calcium (Ca) have?
What is 2
Who organized the periodic Table by increasing mass before it was changed to increasing atomic number?
Who is Dmitri Mendeleev
All elements in group 7A have the same________.
What are valence electrons
Which element has the following electron configuration?
1s2 2s2 2p6 3s2 3p6 4s2 3d7
What is Co (Cobalt)
Define electronegativity
What is the ability of an atom to attract electrons to itself from another atom.
What are valence electrons?
What are electrons located on the outermost energy level.
Describe the groups and periods of the periodic table
What is Groups are columns
What is Periods are rows
Which compound contains an alkali metal and a halogen?
LiF
MgF2
CuS
What is LiF
Describe the Hund rule for writing electron configuration.
What is half filled before paired up.
Half fill the orbitals in p d f before pairing them up.
Which element has less electronegativity?
Li or F
What is Li
What is the importance of know valence electrons?
What is the chemical properties of elements.
What is how many electrons are lost, gained or shared in a chemical bond.
Where are the metalloids located on the periodic table?
What is the stairstep.
All elements in the same family want to obey the octet rule to attain stability. What is the octet rule?
What is 8 valence electrons in the outer shell.
Atoms want to have 8 valence electrons, so they lose or gain in order to attain 8 valence electron.
How many electrons can hold on the second energy level?
What is 8 electrons.
8: 2s2 2p6 --> 2 + 6=8 electrons
Arrange these elements in order of increasing ionization energy:
N F O Be Li
What is Li Be N O F
What type of anion would Sulfur form? Why?
What is S2- because it gains 2 electrons to be stable.
Gold(Au) is on the periodic table. Can you find it and say the name of its family?
What are Transition Metals
List the name of group (17)7A and group (18) 8A elements
What are Halogens and Noble gases
How does the atomic orbital relate to the sublevel/subshells (spdf)?
What is orbitals are part of the sublevels.
Each atomic orbital holds 2 electron. The s sublevel has 1 orbital. The p sublevel has 3 orbitals. The d sublevel has 5 orbital. The f sublevel had 7 orbitals.
Why does the atomic radius decrease across a period.
What is strong nuclear attraction
More protons and electrons are added to the same amount of energy levels creating a strong nuclear attraction (electron move towards the positive nucleus) hence making the size of the atom smaller.
How does the valence electron of K (potassium compare to the valence electron Kr). Which atom is stable?
What is K has 1 and Kr has 8.
Kr is stable!