In each group of elements, The elements will react in a way that is chemically similar. For example, all alkali metals (lithium, sodium, potassium, rRubidium, caesium, and francium) react vigorously with water
True.
Elements in a group have the same number of valence electrons and hence normally they have similar characteristics (or chemical or physical properties).
True with respect to chemical properties but false with respect to physical properties.
This is broadly true. However the similarities are greater in the groups at the edges of the Periodic Table than in those in the middle.
True.
Yes. Its true that elements with similar properties are found in same group.
Yes. Mendeleev did group elements in similar properties.
Mendeleev's periodic table of elements certainly wasn't created in 1901
is it true or false
true
Yes. Its true that elements with similar properties are found in same group.
Yes. Mendeleev did group elements in similar properties.
False
false
false
Mendeleev's periodic table of elements certainly wasn't created in 1901
The elements in each column of the periodic table have the same number of valence electrons. None of the other characteristics listed in the question is common to all these elements.
its false no cap
false
is it true or false
The assertion is false.
true