C1a - Mr Corfe
... Gold Au silver Ag
RULE: An metal is more reactive if it is further
to the left of the periodic table or further
down in the group (not including groups 3-8)
TYPES OF REACTIONS
PHYSICAL – changing of states
EXOTHERMIC – gives out heat
ENDOTHERMIC – take in heat from it surrounding
THERMAL DECOMPOSI ...
Halogens - Cronodon
... Group 7: The Halogens
Fluorine (F), Chlorine (Cl), Bromine (Br), Iodine (I-) and Astatine (At).
The halogens are very reactive elements and so, just like the Group 2 metals, they are
not found in nature in elemental form. Instead they occur as halide ions (fluoride (F–),
chloride (Cl–), bromide (Br– ...
C3 The Periodic Table
... On the periodic table in front of you, annotate everything you know
about what it tells you.
Worksheet 2: 1-19-17 - Iowa State University
... 9. In an experiment, a scientist prepared 3 different compounds containing only iodine and
fluorine. Calculate the mass of iodine per fluorine in each compound.
Mass Iodine (g)
Mass Fluorine (g)
Me, Myself, I, Chlorine BY: Ethan. BP:2
... Me, Myself, I, Chlorine
BY: Ethan. B P:2
It started in a lab in Sweden. Chlorine was first produced by Carl Wilhelm
Scheele, a Swedish
chemist, when he
combined the mineral
pyrolusite (MnO2) with
hydrochloric acid (HCl) in
1774. That is how i was
born. (Beautiful right?) MY
Name________________ Hour____ Chapter 11 Review 1. Name
... j. How many total atoms are reacting? 6
d. Name the element in the reaction. Oxygen
k. How many total atoms are produced? 6
e. Name the compound on the reactant side. Carbon monoxide l. Which substances have double/triple
g. List all of the subscripts in the reaction 2,2
bonds? All have double/tripl ...
Equation Intro Worksheet 1213
... Look at the above picture and the ones on pages 325-327 to see why these reactions are drawn
the way they are…(note that the book uses colors to identify each element’s atoms where I’ve
used letters because this is a black and white photocopy)
5. In the space below, draw the reaction written…use num ...
Group 17: The Halogens - Chemwiki
... react with the noble gas xenon and form the strong oxidizing agent Xenon Difluoride (XeF2). There are many uses for fluorine, which will be
discussed in Part VI of this article.
2. Chlorine - Chlorine has the atomic number 17 and the chemical symbol Cl. Chlorine was discovered in 1774 by extracting ...
All halogens have seven
electrons in their outer
shell. This means that:
They can easily obtain a
full outer shell by gaining
They all gain an electron
in reactions to form
negative ions with a -1
... Held together by bonds
Covalent bonds (strong): 2 or more atoms share
Ionic Bonds (weak): attractions between + and ions
How Atoms Differ (Section 4.3) part 1
... nuclear charge, so the atom is neutral?
• So how many electrons
• Atomic number = number of protons =
number of electrons
• How many electons are in an atom of:
Units 3 and 4 Revision
... Standard Grade Revision
Units 3 and 4
Q1. The box below shows the names of some elements.
CHM 212 - The Federal University of Agriculture, Abeokuta
... As stated earlier,HCl and also HBR and HI behave as weak acids in acetic acid. But the extent
of their ionization varies as follows; HI>HBr>HCl. These are acids are normally classified as
strong acids in aqueous solution because they are fully ionized. But acetic acid gives a
contrast to this, thus ...
Periodic Table Puzzle
... The code letters A to Z have been assigned to represent the first 26 representative elements in the
Periodic Table. The letters do not relate to the actual chemical symbols for these elements.
Your challenge is to put the code letters in the correct boxes in the Periodic Table, based on the
The Periodic Table Notes
... Known as halogens because they react with metals to create salts
At room temperature, fluorine and chlorine are gases, bromine is a liquid, and iodine is a
UNIT 1 - MATTER AND CHEMICAL BONDING
... f) ferrous iodide
l) cobalt(III) sulphate
5. Classify each of the following reactions as synthesis,
single displacement, double displacement, combustion
a) iron + copper(I) nitrate iron(II) nitrate + copper
b) phosphorus + oxygen diphosphorus pentoxide
c) calcium carbonate ca ...
The Periodic Table of Elements
... therefore it becomes more difficult for the nucleus to attract an
electron to form an ion
most reactive is fluorine; least reactive is iodine
all halogens form ions with single negative charge eg F-, Cl-, BrExists as diatomic molecules eg F2, Cl2, Br2, I2
reacts vigorously with metals to form ioni ...
Chapter 2 - Speedway High School
... • An element is a substance that cannot be
broken down to other substances by chemical
• A compound is a substance consisting of
two or more elements in a fixed ratio
... b) aluminum bromide solution and chlorine gas react to form aluminum chloride and
Exam on Matter through Bonding
... 9. Which terms are used to identify pure substances?
(1) an element and a mixture
(2) an element and a compound
(3) a solution and a mixture
(4) a solution and a compound
10. The bonds in the compound MgSO4 can be
Targets of Opportunity
... 10,000 people died in the three days
after the explosion and 15,000 more
have died since.
Periodic Table and Atomic Structure Summary
... The alkali metals are soft metals which are shiny when freshly cut but lose their shininess when
exposed to air as a layer of metal oxide forms.
metal + oxygen metal oxide
For this reason alkali metals are stored under oil to prevent contact with the air or water.
Alkali metals react violently wit ...
The halogens or halogen elements (/ˈhælɵdʒɨn/) are a group in the periodic table consisting of five chemically related elements: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). The artificially created element 117 (ununseptium) may also be a halogen. In the modern IUPAC nomenclature, this group is known as group 17.The name 'halogen' means 'salt-producing'. When halogens react with metals they produce a wide range of salts, including calcium fluoride, sodium chloride (common salt), silver bromide and potassium iodide. The group of halogens is the only periodic table group that contains elements in three of the four main states of matter at standard temperature and pressure. All of the halogens form acids when bonded to hydrogen. Most halogens are typically produced from minerals or salts. The middle halogens, that is chlorine, bromine and iodine, are often used as disinfectants. Organobromides are the most important class of flame retardants. Elemental halogens are generally toxic.