Advertisements
Advertisements
Question
The modern periodic table shows the molecular masses of the elements in each frame.
Options
Right
Wrong
Advertisements
Solution
The modern periodic table shows the molecular masses of the elements in each frame- Wrong
APPEARS IN
RELATED QUESTIONS
Compare and contrast the arrangement of elements in Mendeleev’s periodic Table and the Modern Periodic Table.
How many rows and columns are there in the modern periodic table?
Write the merits of the modern periodic table over Mendeleev’s Periodic table
State modern periodic law.
Give two example of group 1 elements.
Give two example of group 17 elements.
Explain why, the noble gases are placed in a separate group.
Name the scientist who prepared modern periodic table.
How would the tendency to lose electrons change as we go from left to right across a period of the periodic table?
What is the number of valence electrons in the atoms of first elements in a period?
What is a period in a periodic table?
On the basis of electronic configuration, how will you identify chemically similar elements?
On the basis of electronic configuration, how will you identify the first element of a period?
What is the usual number of valence electrons and valency of group 18 elements of the periodic table?
From the standpoint of atomic structure, what determines which element will be the first and which the last in a period the periodic table?
Define:
Periodic table
Name two elements in Alkaline earth metals.
Name the type of elements which have outermost shell incomplete.
Name the type of elements which have two electrons in the outermost orbit.
State the main aim of classifying elements. Which is the more fundamental property of elements that is used in the development of Modern Periodic Table? Name and state the law based on this fundamental property. On which side of the periodic table one can find metals, non-metals and metalloids?
How many periods and groups are there in the modern periodic table?
Name an element of group 18 which can form compounds.
Define the atomic size.
Give the symbol and valency of the following element and radical.
Bicarbonate
Give the chemical formula of magnesium nitrate
Give the chemical formula of carbonic acid
Distinguish between:
Group 17 - Group 18
Elements in the modern periodic table are arranged in ______groups and______ periods.
______ is the longest period in the periodical table.
The arrangement of elements in the Modem Periodic Table is based on their ______
On moving from left to right in a period in the periodic table, the size of the atom ______
The element with atomic number 14 is hard and forms acidic oxide and a covalent halide. To which of the following categories does the element belong?
The amount of energy released when one or more electrons is added to the neutral atom is ______
Which of the following statements about the Modern Periodic Table is correct:
An element which is an essential constituent of all organic compounds belongs to
An element has the atomic number 12.
- Write the electric configuration.
- To which group and period does it belong.
Name the metalloids in the first twenty elements.
An element has 2 electrons in its N shell.
Is it a metal or a non-metal?
