Advertisements
Advertisements
Question
Give the chemical formula of magnesium nitrate
Solution
It denotes in a compound, the number of atoms of element present.
∴ Formula = \[\ce{Mg(NO3)2}\]
APPEARS IN
RELATED QUESTIONS
Fill in the following blank with suitable word:
The basis for modern periodic table is ...............
How were the positions of cobalt and nickel resolved in the modern periodic table?
Which of the following are the correct characteristics of isotopes of an element?
(i) same atomic mass
(ii) same atomic number
(iii) same physical properties
(iv) same chemical properties
(a) (i), (ii) and (iv)
(b) (ii), (iii) and (iv)
(c) (ii) and (iii)
(d) (ii) and (iv)
The atomic numbers of the three elements X, Y and Z are 2, 6 and 10 respectively.
(i) Which two elements belong to the same group?
(ii) Which two elements belong to the same period?
Give reasons for your choice.
Name two elements in each case:
Transition element
Write the number of protons, neutrons and electronic configuration of \[\ce{_19^39K, _15^31P}\]. Also state their position in periodic table.
State what is meant by the term chemical formula.
Give the chemical formula of calcium phosphate
Write scientific reason.
Lithium and sodium are included in the same group in periodic table.
State any five features of modern periodic table.