Advertisements
Advertisements
Question
Name two elements in Alkaline earth metals.
Advertisements
Solution
Calcium and magnesium.
RELATED QUESTIONS
Which of the following statement about the modern periodic table is correct?
(a) It has 18 horizontal rows known as periods.
(b) It has 7 vertical columns known as periods.
(c) It has 18 vertical columns known as groups.
(d) It has 7 horizontal rows known as groups.
What is the major characteristic of the first elements in the periods of the periodic table? What is the general name of such elements?
In the modern Periodic Table, why does cobalt with higher atomic mass of 58.93 appear before nickel having lower atomic mass of 58.71?
Name the type of elements which have one electron short of octet.
What would be the correct order if Zn, Fe, Al and Cu are arranged in increasing order of reactivity?
What is meant in the periodic table by a period?
Define the atomic size.
Give the symbol and valency of the following element and radical.
Bisulphate
State any five features of modern periodic table.
Compare the radii of two species X and Y. Give reasons for your answer.
- X has 12 protons and 12 electrons
- Y has 12 protons and 10 electrons
