Semimetals
This classification of elements is shiny, also known as having luster.
What are metals?
The two factors that affect Coulombic force.
What are distance and charge?
The definition of ionization energy.
What is the energy required to remove an electron from an atom?
The definition of electronegativity.
What is the ability to attract the electrons of another atom?
Down a group, atomic radius _______.
Increases
This classification of elements are generally poor conductors of heat.
What are nonmetals?
The more significant of the two factors that affect coulombic force.
What is distance?
A high coulombic force contributes to a ________ ionization energy.
higher
This element has the highest electronegativity.
What is Fluorine (F)?
Right to left across a period, atomic radius ______
increases
The location of the metalloids on the periodic table.
What is the "staircase"?
The effective nuclear charge is the same as this.
What are the number of valence electrons or group number (1A notation)?
Order these by decreasing ionization energies.
chlorine (17), aluminum (13), phosphorus (15)
chlorine, phosphorus, aluminum
Order these by increasing electronegativity.
oxygen (8), selenium (34), sulfur (16)
selenium, sulfur, oxygen
Order these by decreasing atomic radius:
S(16), Si(14), Se(34)
Se, S, Si
The ability to be flattened into a thin sheet.
What is malleability?
The element that has the highest coulombic force.
What is helium (He)?
Daily Double: Wager any multiple of 400 points. (Example: 0,400,800,1200,etc.)
D) Na #11 2nd ionization energy
This group has the lowest electronegativity.
What are the noble gases?
A new element X is discovered and is able to form both a cation and an anion. Order its ions and neutral atom by increasing atomic radius.
The ability to be turned into a wire.
What is ductility?
The smallest element with an effective nuclear charge of 4.
What is carbon?
Compare the ionization energies of I (#53) to Sr(#38). Explain, mentioning distance, nuclear effective charge, and coulombic force.
The valence electrons of both elements are in the same energy levels so the distance to the nuclei are similar. However I has a Zeff of 7 while Sr has a Zeff of 1. This means iodine has a higher coulombic force and therefore a higher ionization energy.
Compare the electronegativity of Mg (12) to Ba (56). Explain, mentioning distance, nuclear effective charge, and coulombic force.
Mg and Ba have the same Zeff (2), however Ba has more electron energy levels than Mg. Therefore its valence electrons are farther away from the nucleus and feel a lower coulombic force. So Ba would also have a lower electronegativity than Mg.
Daily Double: Wager any multiple of 500. Example:(0,500,1000,1500,etc.)
Al3+, Mg2+, Ne, , F-, O2-, N3-, K+