Advertisements
Advertisements
Question
Give the symbol and valency of the following element and radical.
Hydrogen
Advertisements
Solution
| Element/Radical | Symbol | Valency |
| Hydrogen | H | one |
APPEARS IN
RELATED QUESTIONS
What is the name of those elements which divide metals and non-metals in the periodic table?
Explain why, the noble gases are placed in a separate group.
Consider the following elements:
Na, Ca, Al, K, Mg, Li
Which of these elements belong to the same group of the periodic table?
Consider the following elements:
20Ca, 8O, 18Ar, 16S, 4Be, 2He
Which of the above elements would you expect to be:
(i) very stable?
(ii) in group 2 of the periodic table?
(iii) in group 16 of the periodic table?
Correct the statement.
Copper and zinc are representative elements.
Name two elements in each case:
Transition element
How does number of (i) valence electrons (ii) valency; vary on moving from left to right in the second period of a periodic table?
Two elements P and Q belong to the same period of the modern periodic table and are in group 1 and group 2, respectively. Compare the following characteristics in the tabular form.
- Number of electrons in their atoms
- Their tendency to lose electrons
- Their metallic characters
- Formation of their oxides
- Formulae of their chlorides
Find the odd one out and give its explanation.
Answer the following in respect of element \[\ce{_16^32S}\].
To which group and period does it belong?
