What do you know about valency
Valency Challenge: Test Your Knowledge!
Welcome to the Valency Challenge quiz! This quiz is designed to test your understanding of valency and the properties of elements. Whether you are a student looking to reinforce your knowledge or someone with a keen interest in chemistry, this quiz is for you!
Get ready to answer questions about:
- Element symbols and names
- Compound compositions
- Atomic structures
- Valence electrons and more!
1) Which symbol is a correct representation of cobalt according to IUPAC?
Co
CO
CO
Co
2) A student lists four compounds. PCl5, KBr, P4O10, Na2CO3 Which compound contains potassium?
PCl5
KBr
P4O10
Na2CO3
3.) What is the name of Mg?
Magnesium
Manganese
Magnet
None
4.The nucleus of an atom contains:
Protons
Protons and Neutrons
Neutrons
Electrons
5.In an atom valence electron are present in:
Outermost orbit
Next to outermost orbit
First orbit
Any One
6.What is the number of valence electrons of AI?
1
2
3
4
7. Which of the following arrangements of electrons represent magnesium (Mg)?
2,8,1
2,8,3
2,8,2
2,8,4
8.How many electrons in a Hydrogen (H) atom:
1
2
3
4
9. What is valency of fluorine
9
7
1
0
10. What is the atomic no. Of calcium
30
20
18
13
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