Noble Gas Notation & Electron Configuration
What is the electron configuration for Mn
1s22s22p63s23p64s23d5
What is the formula for molarity?
M=moles/volume
When an element loses an electron, it becomes ________
Positively(+) charged
What is electronegativity?
An atom's ability to attract an electron to itself
What must you do before starting to write an equilibrium expression?
Balance the equations and identify the state
What is the electron configuration for Fe?
If 0.5 moles of NaCl are dissolved in 250 mL of water, what is the molarity of the solution?
2.0 M
What is the octet rule in chemical bonding?
Every element has to have 8 energy levels when bonding.
What is Ionization Energy?
Energy required to remove an electron from an atom
What are the two exceptions for this rule?
You do not include solids or liquids in the equations
What is the noble gas notation for Sr?
[Kr] 5s2
On a heating curve, what happens to the temperature during a phase change like melting or boiling?
It stays constant
What is the only exception to the octet rule?
Helium, since it can only have 2 energy levels (duet rule)
Will an atom with high or low IE lose an electron readily?
Low
What is the equilibrium constant formula?
Kc=[C]c [D]d /[A]a [B]b
What is the noble gas notation for Ti?
[Ar] 4s23d2
Which part of the heating curve represents the greatest energy input without increasing the temperature?
Does Ca have an octet rule?
Yes
As you move down a group, what happens to the atomic radius?
Increases
What do the 'a, b, c, d' represent?
The coefficients used to balance the equation
What is the noble gas notation for Rn?
[Xe] 6s25d106p6
Why is the heat of vaporization hard for water?
What is covalent bonding?
The bonding of nonmetals.
As you move left to right across a period, what happens to the atomic radius?
Decreases
Write the equilibrium equation for:
CH3OOH+H2O -->CH3OO-+H3O+
Keq: [CH3OO] [H3O] /[CH3OOH}