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Zero group elements has valency
To which period does an element having an electronic configuration of 1s2, 2s2, 2p6, 3s2, 3p4 belong to?
A part of the modern periodic table is given below. Which of the following elements in this period is the most electropositive? Why?
| Li | Be | B | C | N | O | F | Ne |
In which group does the element having electronic configuration 1s2, 2s2, 2p3 lie?
What is a periodic table?
Name the scientist who propounded "atomic theory".
State Mendeleev's periodic rule.
Write down the number of groups and periods in Mendeleev's periodic table.
State the Modern periodic law.
Which period is the longest period of the Modern periodic table? How many elements are there in that period?
What is electronic configuration?
What is duplet state? Write with one example.
How many periods are there in the Modern periodic table?
In which block the elements of group 15 (VA) lie?
In which block the elements of group IIA (2) lie?
What are the positive aspects of the modern periodic table relative to Mendeleev's periodic table? Mention any four points.
Which of the following pairs is transition elements?
Define periodic table and write modern periodic law. In which group of modern periodic table alkali metals and halogens are kept.
Write the molecular formula of compound formed by the elements on the basis of the atomic structure of the following elements given in the table?
Study the given table and answer the following questions.
Which element of them can form strong alkali?
Pseudo symbol of elements Q X Y Z Valence shell electronic configuration of elements 3s$^1$ 3s$^2$ 3s$^2$3p$^1$ 3s$^2$3p$^5$ - Rearrange them in the order of lesser metallic character.
- Clarify an element having the least atomic radius among them with reason.
Write any two characteristics of each of p-block and d-block elements of modern periodic table.
NH$_3$, H$_2$, and CO$_2$ are important gases used in industries and daily life as well.
- Which gas can form potassium carbonate when passed in KOH solution?
- Which of them can be used to prepare weak alkali?
In what ways, the modern periodic table is more advanced than Mendeleev's periodic table? Mention any two points. Write two differences between p-block and s-block elements.
Zero group elements has valency
To which period does an element having an electronic configuration of 1s2, 2s2, 2p6, 3s2, 3p4 belong to?
A part of the modern periodic table is given below. Which of the following elements in this period is the most electropositive? Why?
| Li | Be | B | C | N | O | F | Ne |
In which group does the element having electronic configuration 1s2, 2s2, 2p3 lie?
What is a periodic table?
Name the scientist who propounded "atomic theory".
State Mendeleev's periodic rule.
Write down the number of groups and periods in Mendeleev's periodic table.
State the Modern periodic law.
Which period is the longest period of the Modern periodic table? How many elements are there in that period?
What is electronic configuration?
What is duplet state? Write with one example.
How many periods are there in the Modern periodic table?
In which block the elements of group 15 (VA) lie?
In which block the elements of group IIA (2) lie?
What are the positive aspects of the modern periodic table relative to Mendeleev's periodic table? Mention any four points.
Which of the following pairs is transition elements?
Define periodic table and write modern periodic law. In which group of modern periodic table alkali metals and halogens are kept.
Write the molecular formula of compound formed by the elements on the basis of the atomic structure of the following elements given in the table?
Study the given table and answer the following questions.
Which element of them can form strong alkali?
Pseudo symbol of elements Q X Y Z Valence shell electronic configuration of elements 3s$^1$ 3s$^2$ 3s$^2$3p$^1$ 3s$^2$3p$^5$ - Rearrange them in the order of lesser metallic character.
- Clarify an element having the least atomic radius among them with reason.
Write any two characteristics of each of p-block and d-block elements of modern periodic table.
NH$_3$, H$_2$, and CO$_2$ are important gases used in industries and daily life as well.
- Which gas can form potassium carbonate when passed in KOH solution?
- Which of them can be used to prepare weak alkali?
In what ways, the modern periodic table is more advanced than Mendeleev's periodic table? Mention any two points. Write two differences between p-block and s-block elements.