Click to start!
8Click to start!
8Click to start!
9Valence electrons are the electrons present in the outermost shell of an atom.
Valency is the number of protons in an atom.
Electrons in the valence shell can be shared or exchanged during chemical reactions.
Sodium has valency 1 and is more reactive than magnesium which has valency 2.
Helium has 2 valence electrons but valency 0.
Iron has a fixed valency of 2 only.
Copper can have valency 1 or 2 depending on the reaction.
Elements with high valency are more reactive than elements with low valency.
Percentage: 0%
Valence electrons are located in which shell?
Valency of an atom depends on:
Which element has valency 0?
Sodium (Na) is more reactive than Magnesium (Mg) because:
Copper can show variable valency:
Chlorine has valence electrons:
The valency of oxygen is:
Which atom has 2 valence electrons?
Electrons present in the outermost shell are called ______ electrons.
The combining capacity of an atom is called its ______.
Sodium has valency ______.
Magnesium has valency ______.
Iron can have valency ______ and 3.
Copper can have valency ______ and 2.
Helium has ______ electrons and valency 0.
Chlorine has ______ valence electrons.
Potassium has valency ______.