WorksheetsSSCC 1703 - Pre-Test Q
Total questions: 20
Worksheet time: 6mins
Which is not the way the classifications in the Periodic Table are carried out?
s block, d block, p block, f block
Group-based on the numbers of valence electron and period-based on the highest quantum number, n
metal, metalloid, non metal
ability to form complex
What rule/principle is this: In a set of degenerated orbitals, the electrons will filled in singly with maximum parallel spins before it start to pair up with opposite spins.
Hund's Rule
Pauli's Principle
Aufbau Principle
Sheela's Rule
What is the trend of the atomic radii going down the group and across the period?
Decrease, Increase
Increase, Increase
Increase, Decrease
Decrease, Decrease
Which is not a type of chemical bond?
Metallic
Ionic
van der Waals
Covalent
Which is the property for ionic compounds?
Dissolve in polar solvent
Share one or more electron pairs
Electric insulator
Low melting point
What is the first step in drawing a Lewis structure?
Ask the lecturer
Put the least electronegative atom in the centre
Complete the octet on the outside
Find the total number of valence electrons
What is one of the uses of hydrogen?
To fill balloons
To produce methanol
In respiratory machines
To cut metals
All of these are special properties of hydrogen, except
Short and strong covalent bond
Can form interstitial hydride compounds
Lowers the boiling point of certain compounds thanks to hydrogen bonding
can form ionic and covalent bonding
All of these are characteristics of Group IA elements, except
These metals all have one electron in their outer shell
Reactivity increases as you go down the group.
They all react with water to form an alkali and oxygen
They can readily lose the outer shell electron to form positive ions with a +1 charge and a full outer shell.
Group IA has 7 elements member, but for Alkali only has 6 elements member
Incorrect
Correct
Which alkali metal has the symbol Cs
Caesium
Ceasium
Calcium
Sodium
one of the elements of Group 2 on the periodic table.
Alkaline Metals
Alkaline Earth Metals
Transition Metals
Nonmetals
Which of the following is not a member of the alkaline earth metals, Group 2?
Beryillium
Magnesium
Hydrogen
Calcium
How many electrons are found in the outer shell of an alkaline earth metal?
1
2
3
4
What happens to the reactivity of the alkaline earth metals as you move down their group?
Increases
decreases
stays the same
What is the appearance of magnesium? But what happens to it when you expose it to air?
it is dull and it becomes shiny when exposed to air
it melts at room temperature and resolidifies when exposed to air
it turns into a vapor and gives off a red light when exposed to air
it is shiny but becomes oxidized and dulls when exposed to air
When you put Calcium in water, what molecule forms?
Calcium hydrate
calcium hydroxide
calcium precipitate
magnesium oxide
Which are more reactive than the alkaline earth metals?
inert gases
Transition metals
Metalloids
alkali metals
