Which element has a larger atomic radius Carbon or Oxygen?
Carbon
100
Which element has a higher ionization energy Be or F?
F
100
What is electronegativity?
Electronegativity is the ability of the atom to attract electrons when the atom is in a compound
100
What are valence electrons?
Valence electrons are outermost electrons or electrons in the highest energy sublevel
100
What is the electron configuration of hydrogen
1s1
200
Which atom has a bigger atomic radius Chlorine or Aluminum?
Aluminum
200
Which element has a bigger 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?
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?
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
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, Bismuth, 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 and 4 respectively
400
What is the electron configuration for Selenium
What is 1s2,2s2,2p6,3s2,3p6,4s2, 3d10,4p4
500
What increases from left to right in a period?
Effective charge
500
Why does ionization energy increase from left to right across a period?
Because nuclear charge increases but the shielding effect stays the same
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 Xenon have?
What is 8
500
What is the electron configuration for Francium or Fr?