Advertisements
Advertisements
प्रश्न
Write the name.
The atom having the smallest atomic radius from zero group.
Advertisements
उत्तर
Helium (He)
APPEARS IN
संबंधित प्रश्न
Give the trend in metallic character:
(i) across the period left to right
Give the trend in metallic character:
down the group top to bottom.
Explain the following:
Group 17 elements are strong non-metals, while group 1 elements are strong metals.
Explain the following:
Metallic character of elements decreases from left to right in a period while it increases in moving down a group.
An element barium has atomic number 56. Look up its position in the periodic table and answer the following question.
Is it a metal or a non-metal?
How do the following change on moving from left to right in a period of the periodic table?
Give examples in support of your answer.
Nature of oxides of the elements ?
Arrange the elements of group 17 and group 1 according to the given conditions.
Increasing non – metallic character
The elements at the bottom of a group would be expected to show ______ metallic character than the element at the top.
Write a scientific reason.
Metallic character goes on decreasing while going from left to right in a period.
Explain
Larger the atomic size, more metallic is the element.
Within a group, where would you expect to find the element with the greatest metallic character.
A group of elements in the periodic table is given below (Boron is the first member of the group and thallium is the last.)
Boron
Aluminium
Gallium
Indium
Thallium
Answer the following questions in relation to the above group of elements:
- Which element has the most metallic character?
- Which element would be expected to have the highest electronegativity?
- If the electronic configuration of aluminium is 2, 8, 3, how many electrons will be there in the outermost shell of thallium?
- The atomic number of boron is 5. Write the chemical formula of the compound formed when boron reacts with chlorine.
- Will the elements in the group to the right of this boron group be more metallic or less metallic in character? Justify your answer.
The tendency of an element to form cation is the ______ character of that element.
Right or wrong sentence.
Silicon is a metallic element.
Write scientific reason.
The metallic character of elements increases while going down the groups.
A metal ‘M’ is in the first group of the Periodic Table. What will be the formula of its oxide?
Which of the following set of elements is written in order of their increasing metallic character?
