Atomic Structure
Write the 4 missing words (don't copy whole thing)
Every time that you write the word _______, you will write the word _______ in front of it. Every time that you write the word ________, you will write the word _________ in front of it.
Proton, Positive, Electron, Negative
Which of the following would you NEVER put brackets around? (Write down all correct answers)
Ca2+ OH- NO3- Na+ Ag2+
Ca2+ Na+ Ag2+
A marble chip is added to some hydrochloric acid. Write down two ways that I could increase the rate of reaction.
Increase surface area (use marble powder)
Increase temperature
Increase concentration of the Acid
Do the reactants of an equation go on the left or the right in a word equation?
Left
This is the definition, what is the word?
Substance that releases hydrogen ions (H+) in water; has a pH<7
Acid
Draw a Sodium Atom (Atomic Number 11, Mass Number 23)
11 protons, 12 neutrons, 11 electrons
Name this compound:
Ag2SO4
Silver Sulfate
Neutralisation
An acid plus a base forms a ______ plus _____.
Salt, water
Does a "group" on the periodic table go vertically or horizontally?
Vertically
What is the electron configuration of the Magnesium ion? (atomic number 12)
2,8
Complete this phrase:
"In order to gain a full outer shell _____ ______ ________"
"In order to gain a full outer shell and become stable"
Will an Acidic Substance have a higher proportion of Hydrogen or Hydroxide ions?
Hydrogen
Acid + Carbonate --> ? + ? + ?
Salt, Carbon Dioxide, Water
Fill in the missing word:
Hydrogen, Helium, Lithium, Beryllium, Boron, Carbon, ________, Oxygen
Nitrogen
How many protons, neutrons, and electrons are there in Fluorine- atomic number 9, mass number 19
Protons: 9
Neutrons: 10
Electrons: 9
Write the ionic compound formed with
Al3+ and SO42-
Al2(SO4)3
Write all of the pH's with the colour of Universal Indicator at that pH.
1-2: Red
3-4: Orange
5-6: Yellow
7: Green
8-11: Blue
12-14: Purple
HCl + KOH --> ? + ?
KCl + H20
How do you use litmus paper to determine if a substance is neutral?
Red stays red, blue stays blue
What determines an elements position in the periodic table?
The atomic number/number of protons in the nucleus
Write down the ionic compounds formed in the following:
a) Na+ and SO42-
b) K+ and CO32-
c) Ca2+ and HCO3-
a) Na2SO4
b) K2CO3
c) Ca(HCO3)2
Order the following mixtures from low pH to high pH (write 5 letters in order):
a) 15 H+ and 5 OH-
b) 12 OH- and 8 H+
c) 2 H+ and 2 OH-
d) 8 OH- and 12H+
e) 19 H+ and 10 OH-
a, e, d, c, b
HCl + MgCO3 --> ? + ? + ?
CO2 + H2O + MgCl2
Name the Scientist who was the first to discover that atoms have a small charged nucleus surrounded by largely empty space, and are circled by tiny electrons.
Ernest Rutherford