Atomic Size
Ionization Energy
Electronegativity
Valence Electrons
Electron Configurations
100
Which element has a larger atomic radius Carbon or Oxygen?
Carbon
100
Which element has a higher ionization energy N or F?
F
100
What is electronegativity?
Electronegativity is the ability of the atom to attract electrons when the atom is in a compound, typically with a covalent bond.
100
What are valence electrons?
Valence electrons are outermost electrons or electrons in the highest energy sublevel
100
What is the electron configuration of Helium?
1s2
200
Which atom has a bigger atomic radius Chlorine or Aluminum?
Aluminum
200
Which element has a larger ionization energy Mg or S?
S
200
Explain general electronegativity trends
In general, electronegativity values decrease from top to bottom within a group. For representative elements, the values tend to increase from left to right across a period.
200
The atom with the highest electronegativity value, Flourine, has how many valence electrons in its highest energy level (outer shell)?
7
200
What is the electron configuration for Helium?
What is 1s2
300
Which atom has a bigger atomic radius Chlorine or Calcium?
Calcium
300
Which element has a higher ionization energy Mercury or Polonium?
(Hg or Po) Polonium
300
Which of these five elements has the highest electronegativity Mg, Al, Si, P, S, Cl
What is Cl or Chlorine
300
Strontium has how many valence electrons?
Strontium has 2 valence electrons (2nd group - alkaline elements)
300
What is the electron configuration for Lithium
What is 1s2 2s1
400
Which element has a bigger atomic size Fluorine or Iodine ?
Iodine
400
Which of these four has the lowest ionization energy Palladium, Cadmium, Antimony or Astatine?
Palladium
400
Which of the following four elements has the lowest electronegativity: Li, Na, K, Rb, Cs
What is Cs or Cesium
400
How many valence electrons do Boron and Tin have respectively
3 (B) and 4 (Sn) respectively
400
What is the electron configuration for Selenium
What is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p4
Count the electrons... Se is atomic number 34, so 34 electrons.
500
What increases from left to right in a period?
Effective charge of the nucleus
500
Why does ionization energy increase from left to right across a period?
Because nuclear charge increases but the shielding effect stays the same, drawing the valence electrons in closer to the nucleus thus having a greater force holding onto them.
500
What is he difference between electronegativity and ionization energy?
Ionization energy is the energy needed to remove an electron and electronegativity is the tendency to attract electrons when the atom is in a compound
500
How many valence electrons does Nitrogen have?
What is 5
500
What is the electron configuration for Francium or Fr?
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s1