EASY
Upper Secondary: IGCSE
IMPORTANT
Earn 100

The electron distribution for boron is 2+3. What is it for lithium?

Important Questions on Atoms and Elements

EASY
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 3 - Atoms and Elements>Q>Q 2
The electron distribution for boron is 2+3. What is it for magnesium?
EASY
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 3 - Atoms and Elements>Q>Q 2
The electron distribution for boron is 2+3. What is it for hydrogen?
EASY
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 3 - Atoms and Elements>Q>Q 4
How many electron shells do atoms of period 3 have?
EASY
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 3 - Atoms and Elements>Q>Q 5
The element krypton Kr, is in group 0, period 4. Its proton number is 36. Write the electronic configuration for krypton.
EASY
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 3 - Atoms and Elements>Q>Q 5
The element krypton Kr, is in group 0, period 4. Its proton number is 36. What can you say about the reactivity of krypton?
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 3 - Atoms and Elements>Q>Q 1
Without looking at the periodic table, see if you can quickly list 30 elements, and give their symbols. Then underline the metals.
EASY
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 3 - Atoms and Elements>Q>Q 2
Explain the term conductor.
EASY
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 3 - Atoms and Elements>Q>Q 2
Explain the term ductile.