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WorksheetsPeriodic table so far U4
Total questions: 46
Worksheet time: 23mins
An element is.....
...made up of lots of atoms
... is more than one kind of atom
...made up of one kind of atom
.... made of one atom
What is an atom?
Smallest possible piece of rock
Smallest possible particle
Largest possible particle
Largest piece of rock
Elements are ordered in the periodic table based on their ...
... atomic number
... chemical symbol
.... date of discovery
... size
The periodic table is organized in horizontal rows called...
Groups
Families
Periods
Chemical Symbols
The vertical columns of the periodic table are called...
Periods
Families
Chemical Symbols
Groups
Which two products are formed when sodium reacts with water?
Which is the correct symbol equation for the reaction between sodium hydroxide and water?
When an alkali metal reacts with water, the metal hydroxide produced dissolves to form an alkaline solution. True or False?
Which alkali metal has the symbol Cs
Caesium
Ceasium
Calcium
Sodium
Arrange the elements in group 1 from the top to bottom of the group.
Li, Na, K, Fr, Rb, Cs
Li, Na, K, Rb, Fr, Cs
Li, Na, K, Rb, Cs, Fr
Fr, Cs, Rb, K, Na, Li
What flammable gas is given off when group 1 elements react with water?
Hydrogen
Oxygen
Carbon dioxide
Helium
Which of the Halogens is yellowish green colour gas at room temperature?
Chlorine
Bromine
Flourine
Iodine
Which of the following is not a use for Chlorine?
Swimming pool treatment
Drinking water disinfectant
Sterilising agent used during surgeries and for medical tools
Bleaching fabrics and papers
All Halogens are Toxic.
True
False
Which answer has the Chemical Symbols for all of the elements in Group 7 (the halogens)?
F, Cl, Br, I, At
N, P, As, Sb, Bi
Be, Mg, Ca, Sr, Ba, Ra
Li, Na, K, Rb, Cs
Which of the Group VII elements (Halogens) is found in liquid state at room temperature?
Flourine
Chlorine
Iodine
Bromine
As you move down the group, halogens' reactivity...
increases
decreases
doesn't change
shows no trend.
Which halogen is the most reactive?
iodine
chlorine
bromine
fluorine
Which halogen is a purple-black solid?
iodine
chlorine
bromine
fluorine
Which of the following mixtures is instantly explosive?
fluorine and hydrogen
chlorine and hydrogen
iodine and hydrogen
bromine and hydrogen
Which group of the periodic table is composed of inert (not reactive) gases?
alkali metals
alkaline earth metals
halogens
noble gases
In the Periodic Table, elements in a .................. have similar chemical properties.
period
group
row
The formula NaCl represents which compound?
Sodium Hydroxide
Sodium Carbonate
The formula NaOH represents which compound?
Sodium Hydrate
Sodium Carbonate
The formula MgO represents the compound called :
The smallest unit of matter which can exist independently is called
an atom
a molecule
a compound
an element
The chemical symbol for calcium is
Ca
Cl
Cu
Cm
An (a) is a substance made of only one kind of atom.
The properties of a (a) are different from its constituent elements.
Name the element with the symbol
K
Aluminum
Potassium
Magnesium
Calcium
Which of the following are true for all compounds?
They have the same properties as thier constituent elements
Atoms are combined physically together
They are all mixtures
Constituent atoms are always found in a fixed ratio
What two elements are chemically bonded together in this compound?
Potassium and oxygen
Chlorine and oxygen
Potassium and nitrogen
Carbon and oxygen
Which of these chemical formula could be represented by this sample?
What can you see illustrated in this diagram of some molecules?
A pure substance
A mixture of elements
A mixture of compounds
A mixture made up of an element and a compound
Which of these is NOT an a sign that a reaction has occured?
Emission of light
Production of gas bubbles
Temperature does not change
Change of colour
What do we call the substance(s) on the left hand side of a chemical equation?
2H2 + O2 → 2H2O
reactants
products
yields
What do we call the substance(s) on the right hand side of a chemical equation?
2H2 + O2 → 2H2O
Products
Yields
Reactants
Is this an element or compound? Au (Gold)
element
compound
Is this an element or a compound? H2O
element
compound
How many hydrogen atoms are found in a molecule of water (which has this chemical formula)?
1
4
2
3
How many different elements are in the compound glucose, C6H12O6?
1
2
4
3
