Polyatomics
What is a polyatomic?
A molecular ion that consists of a charge that is not 0, rather it maintains its charge when gone through a chemical reaction
What is the ionic charge of the nitride ion?
-3
Are protons, neutrons, or electrons distributed between chemical reactions?
Electrons
Are groups vertical or horizontal
Are periods vertical or horizontal
Groups are vertical
Periods are horizontal
Full name of the scientist who discovered the periodic table of elements
Dmitri Ivanovich Mendeleev
True or False:
Polyatomics should NEVER be written in brackets
False
What, of the two types of reactions, is the name of the reaction between ionic compounds?
Define a covalent reaction
Covalent reactions are chemical reactions where the elements share electrons between their valence orbits rather than giving up or gaining electrons
What families are associated with group 1, 2, 17, and 18?
Group 1-Alkali Metals
Group 2-Alkaline Earth Metals
Group 17-Halogens
Group 18-Noble Gases
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Which scientist is associated with the theory of electrons moving in waves and unpredictable places and the ideas of electron configuration?
Erwin Schrodinger
What is the main purpose of polyatomic compounds such as Nitrate and Nitrite in food even though polyatomic compounds are toxic?
To preserve food, making sure it does not go bad by getting rid of bacteria and other harmful things.
Besides using math to discover the chemical formula between a metal and non-metal, what is the other method to do so?
In the chemical formula Cu3P2, what is the ionic charge of each element?
Copper has an ionic charge of +2
Phosphorus has an ionic charge of -3
What is the relation between groups and the number of valence electrons for the first 20 elements?
Elements of the same group have the same number of valence orbit
For example: helium, neon, and argon have full valence orbits with 8 electrons
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What are the unique names for Iron(II), Copper(II), and Iron(III)
-Iron(II) is Ferrous
-Copper(II) is Cupric
-Iron(III) is Ferric
What is the result compound of a chemical reaction between an Fe^3+ and three OH^-?
Fe(OH)3
When writing chemical formulas for ions, what is different when a transition metal is involved?
Chemical Formulas with a Transition metal must have its charge written beside it as the charge of a transition metal can vary
What is the name of the chemical compound NiBr2
Nickel(II) Bromide
What is the relation between electron orbits and periods?
-Each period indicates the number of electron orbits the elements from that period possess
-The further you go down the periods, the more electron orbits the elements have
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What family has the properties of high ionization energy and an electron affinity to near zero?
Noble Gases
Name two polyatomic ions and their ionic formulas
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Nitrate Ion - NO3-
Nitrite Ion - NO2-
Hydroxide Ion - OH-
Hydrogen Carbonate Ion - HCO3-
Chlorate Ion - CIO3-
Carbonate Ion - CO3^2-
Sulfate Ion - SO4^2-
Phosphate Ion - PO4^3-
Ammonium - NH4^+
What is the name and chemical formula for a chemical reaction between Au(III) and Se
Gold Bromide
Au2Se3
What is the chemical formula of magnesium selenide and lithium bromide?
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magnesium selenide-Mg2Se2
lithium bromide-LiBr
What is the relation between ionic charges and where elements are located?
For full $500 mention the two main points
-Ionic charges are constant in a specific group
-The further you progress towards the center of the period table, the higher ionic charges seem to be
Triple Money
What is the electron configuration of Bromine?
1s^2 2s^2 2p^6 3s^2 3p^6 3d^10 4s^2 4p^5
Or
(Ar) 4s^2 3d^10 4p^5