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WorksheetsCHEM- Periodic Table and Group (1, 7, 8)
Total questions: 49
Worksheet time: 32mins
What are the vertical columns on the periodic called?
groups
periods
nonmetals
metals
metalloids
What do the vertical columns on the periodic table tell us?
The number of orbitals
The number of valence electrons (electrons on the outer most shell)
What do the horizontal rows on the periodic table tell us?
The number of orbitals
The number of valence electrons (the electrons on the outer most shell)
How do you calculate the number of neutrons? *
Mass = Atomic number - Neutrons
Mass - Atomic number = Neutrons
Atomic number = Neutrons
What is the name of the element? (Periodic table will be needed)
sodium
magnesium
vanadium
What group and period does this element belong in? *
period 1 and group 3
period 3 and group 1
period 2 and group 3
period 3 and group 2
How many valence electrons does the element have?
1
2
3
4
What is the atomic mass?
58.693
28
Who discovered the nucleus?
Rutherford
Bohr
Thomson
Dalton
Who proposed a model with electrons moving in specific layers?
Rutherford
Bohr
Thomson
Dalton
Who discovered the electrons?
Rutherford
Bohr
Thomson
Dalton
This element has two valence electrons and two energy levels?
Beryllium (Be)
Lithium (Li)
Zinc (Zn)
How many valence electrons and energy levels does (Pb) lead have?
4 valence electrons and 6 energy levels (orbitals)
6 valence electrons and 4 energy levels (orbitals)
5 valence electrons and 5 energy levels (orbitals)
5 valence electrons and 10 energy levels (orbitals)
The Group 1 elements are all very ____________.
reactive
unreactive
Select the properties of the Group 1 elements.
Silvery solids
Very hard metals
Very soft metals
High density
Low density
The reactivity of the Group 1 elements ______________ as you go down the group.
decreases
increases
does not change
Sodium is less reactive than which Group 1 elements?
Lithium
Potassium
Rubidium
Caesium
What gas is produced during a reaction between an alkali metal and water?
(a)
Universal indicator is added to water. What colour will the universal indicator turn during a reaction between water and lithium?
(a)
Lithium is reacted with chlorine gas. What is produced in this reaction?
(a)
Balance the equation for the reaction between sodium and oxygen.
(a) Na + O2 → 2Na2O
Atom T has a proton number of 11 and a nucleon number of 23. Which of the following is true about element T?
It does not conduct electricity
If forms an oxide with the formula TO
It is a hard black solid
It reacts with water to form an alkaline solution
What gas is given off when group 1 elements reacts with water?
Hydrogen
Oxygen
Carbon dioxide
Helium
Why does the reactivity of group 1 elements increases down the group?
It becomes more reactive
It becomes easier to accept an electron
It becomes easier to lose an electron
It becomes less reactive
Q and R are two elements located in the same group. The proton number of Q is 9. What is the possible electron arrangement of atom R?
2.8.7
2.8.8
2.8.8.1
2.8.8.4
Francium (Fr) is placed below rubidium in Group 1 of the Periodic Table. Based on this information, it can be predicted that francium
I) produces a water soluble carbonate
II) forms the ion Fr+
III)reacts vigorously with water
IV) is a very electropositive element
I and III only
II and IV only
I,II and III only
I,II,III and IV
What is the name of group number 1?
halogens
noble gases
alkali metals
alkaline earth metals
What is the name of group number 2?
transition metals
transition metals
transition metals
alkaline earth metals
where are the metaloids found
far left, vertical
stair step/diagonal
far right horizontal
at the bottom
What group number are the halogens found?
2
18 (8A)
1
17 (7A)
Periodic law states that the elements are arranged according to their atomic ________ so that elements with similar chemical properties are in the same ________ and properties repeat periodically.
numbers, rows
masses, rows
masses, column
numbers, column
__________ would have some characteristics of metals and some characteristics of nonmetals.
Gold
Sodium
Arsenic
Bismuth
Which halogen is found in period 4?
Krypton (Kr)
Xenon (Xe)
Bromine (Br)
Iodine (I)
Which element has similar chemical properties as sodium but has 7 energy levels?
Potassium (K)
Rubidium (Rb)
Cesium (Cs)
Francium (Fr)
Elements that have the same number of energy levels are said to be in the same ______.
group
period
family
same classification
True or False: The reactivity of metals tends to decrease as you move from left to right across the periodic table.
True
False
I am a nonmetal
I am in period 2
I am in group 16/6A
Ba
Be
Si
O
Find an element with similar chemical properties to Barium (Ba).
Ca an Ra, because they are in the same group and have similar chemical properties.
Cs and La, b/c they are in the same period number.
Ca and C, b/c they are 90 degree angle and have similiar properties.
What happens to the number of shells as you move down a group?
They decrease by 1
Nothing
They increase by 1
All elements in the same row have the same number of shells.
False
True
