0.000 s
Revise smart, understand Better
Select Lessons (10)
ENERGY: Action of electricity on materials
ENERGY: Action of heat on materials
MATTER - PROPERTIES AND TRANSFORMATION: Chemical Reactions And Equations
MATTER - PROPERTIES AND TRANSFORMATION: Chemical Symbols, Formulae And Valency
MATTER - PROPERTIES AND TRANSFORMATION: Effect Of Heat On Substances
MATTER - PROPERTIES AND TRANSFORMATION: Introduction To Chemistry - Symbols
MATTER - PROPERTIES AND TRANSFORMATION: Mixtures And Pure Substances
MATTER - PROPERTIES AND TRANSFORMATION: Periodic table - Families of elements and Relative reactivity
MATTER - PROPERTIES AND TRANSFORMATION: Reaction With Oxygen of air
MATTER - PROPERTIES AND TRANSFORMATION: The Atom And Sub-Atomic Particles
5/70 MCQs for:
MATTER - PROPERTIES AND TRANSFORMATION: Periodic table - Families of elements and Relative reactivity
Which of the following elements is an alkali metal among the first 20 elements?
Lithium (Li).
Aluminum (Al).
Beryllium (Be).
Magnesium (Mg).
Group VIII elements are called:
All are correct.
Rare gases.
Inert gases.
Noble gases.
Which pair of elements would have very different chemical properties?
Lithium and Sodium.
Fluorine and Chlorine.
Calcium and Magnesium.
Sodium and Neon.
What trend is observed for atomic size as you move down a group?
Fluctuates randomly.
Decreases.
Remains the same.
Increases.
Among the first 20 elements, which is the most reactive metal?
Calcium.
Sodium.
Potassium.
Lithium.
