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Periodic Table I
Periodic Table II
Electrons and Ions
Names and Formulas
Miscellaneous
100
This is the definition of 1st IONIZATION ENERGY.
What is: Energy required to remove electron from valence energy level of a neutral atom in ground state (and technically, you should ALSO mention that atom is in the gas state).
100
This is the element in period 4 with the lowest ionization energy.
What is potassium (K)?
100
This element gains 3 electrons to become isoelectronic with krypton.
What is bromine?
100
This is the formula for a compound called strontium chloride.
What is SrCl2?
100
When metallic elements form ions, they become isoelectronic with noble gases. Elements from group 16 gain this many electrons to become like a noble gas.
What is 2 electron?
200
This is the only periodic trend we are studying that relates directly to chemical bonds.
What is ELECTRONEGATIVITY?
200
Comparing aluminum and gallium, this metal is the more reactive of the two.
What is gallium?
200
An oxide ion has the same electron configuration as this noble gas.
What is neon? (10 electrons)
200
This is the formula for the compound named cobalt(II) sulfide.
What is CoS?
200
This kind of compound does not conduct electric current in solid form, but if molten (melted, in liquid form) or dissolved in water, it will conduct current.
What is an IONIC compound.
300
This is the most reactive nonmetal element in group 15.
What is nitrogen?
300
Comparing lithium and sodium, this element is the less reactive of the two.
What is lithium?
300
Of Cl1-, K1+, and Ca2+, this is the smallest ion.
What is Ca2+?
300
Molecular compounds are made up of these types of elements bonded together.
What are nonmetals?
300
Molecular compounds are non-electrolytes. This is why they are given this name.
What is compounds that do not conduct electric current when dissolved in water.
400
These three elements are the most electronegative, surpassing all other species in their ability to hold onto electrons.
What are fluorine, oxygen, and nitrogen?
400
Only these electrons are shown in symbols called "dot structures".
What are valence electrons?
400
For main group elements, these are the valence electrons (general description of which electrons are valence).
What are the highest occupied quantum level s and p electrons?
400
Ionic compounds consist of nonmetal anions (monatomic or polyatomic) plus this kind of ion.
What is a metal cation (or ammonium, NH4+)?
400
If you have 3 moles of carbon-12 atoms, you have this many grams of carbon-12.
What is 36 grams?
500
The effective nuclear charge, Z, is equal to 8 for elements in this group.
What is group 18, or the noble gases?
500
When barium becomes a cation, its electron configuration is the same as the configuration for this group 16 anion.
What is Se2-, the selenide ion.
500
This is the name for P4O10.
What is tetraphosphorus decoxide?
500
F(electric) = k x q1 x q2 ______ r2 This expression summarizes an important physical concept. AND for atoms, these are the meanings of q1 and q2 and r2.
What is Coulomb's Law, or how electric force works? AND for atoms, q1 and q2 are numbers of electrons. r is the distance between protons and electrons.