Atomic Structure/Isotopes
What charge do neutrons have and where are they found?
Neutral charge, found in the nucleus.
What is the electron configuration for Carbon?
1s2 2s2 2p2
If we have the compound H2O, how many hydrogens do we have? How many oxygens?
2 Hydrogens
1 Oxygen
What is the difference between two ions of the same element?
Number of Electrons
Elements are arranged on the periodic table in order of what?
Increasing Atomic Number
What is the difference between two Isotopes of the same element?
The number of neutrons
What element is represented by the electron configuration of:
1s2 2s2 2p6 3s1
Sodium
What is the chemical formula for a compound containing 2 carbons and 2 hydrogens?
C2H2
What are the two types of ions and what is the difference between the two?
Cations = Positive = Less Electrons
Anions = Negative = More Electrons
Most elements are classified as?
Metals
If an Isotope of Carbon has an atomic mass of 13 and an atomic number of 6, how many neutrons does this Isotopes have? Why?
13-6 = 7 neutrons
What is the electron configuration for Sulfur?
1s2 2s2 2p6 3s2 3p4
If we have the compound of KSO4. What elements do we have and how many do we have of them?
K = 1
S = 1
O = 4
A certain Aluminum Ion has a charge of 3+. How many protons and electrons does it have?
Protons = 13
Electrons = 10
The last column of elements of the periodic table are called what?
Noble Gases
A specific atom has an atomic number of 8. How many protons/electrons does this atom have? What atom is it?
8 electrons
8 protons
Oxygen
What element is represented by the electron configuration:
[Kr] 5s¹
Rubidium (Rb)
What is the chemical formula for a compound consisting of 1 potassium, 1 nitrogen, and 3 oxygens?
KNO3
What would be the formula for an Ionic compound containing a Magnesium cations with a 2+ charge, and two Chloride anions with a 1- charge?
MgCl2
In what way across the periodic table does atomic size increase?
Down to the left.
A specific atom has an atomic mass of 24, and an atomic number of 12. How many protons/neutrons/electrons does this atom have? What atom is it?
12 protons
12 electrons
12 neutrons
Magnesium
What is the condensed electron configuration for Caesium (Cs)?
[Xe] 6s¹
What is the chemical formula for a compound that has 6 carbons, 12 hydrogens, and 6 oxygens?
C6H12O6
An ionic compound has a chemical formula of CaCl2. What is the cation and what is it's charge? What is the anion and what is it's charge?
Cation = Calcium = 2+
Anion = Chloride = 1-
In what way across the periodic table do both electron affinity and ionization energy increase?
Up to the right.