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Question
An element belongs to the third period and Group IIIA (13) of the periodic table. State: if it is a metal or non-metal?
Solution
It's a Metal.
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RELATED QUESTIONS
Study the following table in which positions of six elements A, B, C, D, E and F are shown as they are in the modern periodic table:
|
Group→
Period↓ |
1
|
2
|
3-12
|
13
|
14
|
15
|
16
|
17
|
18
|
| 2 | A | B | C | ||||||
| 3 | D | E | F |
On the basis of the above table, answer the following questions:-
(i) Name the element which forms only covalent compounds.
(ii) Name the element which is a metal with valency three.
(iii) Name the element which is a non-metal with valency three.
(iv) Out of D and E, which is bigger in size and why?
(v) Write the common name for the family to which the elements C and F belong.
An element 'X' belong to 3rd period and group 13 of the Modern Periodic Table.
(a) Determine the valence electrons and the valency of 'X'.
(b) Molecular formula of the compound formed when 'X' reacts with an element 'Y' (atomic number = 8).
(c) Write the name and formula of the compound formed when 'X' combines with chlorine
Calcium is an element with atomic number 20. Stating reason, answer each of the following questions:-
(i) Is calcium a metal or a non-metal?
(ii) Will its atomic radius be larger or smaller than that of potassium with atomic number 19?
(iii) Write the formula of its oxide.
List any two properties of the elements belonging to the first group of the modern periodic table.
An element has 2 electrons in its N shell.
State the name assigned to this group.
Fill in the blank:
on moving from right to left in the second period, the number of valence electrons……….
Give the number of the group and the period of elements having three shells with three electrons in valence shell.
Answer the following question:
State the four blocks of the modern periodic table based on the electronic configuration of elements.
Select the correct answer from the options given below.
It is a period having elements from atomic no. 11 to 18.
State the following:
The group which contains highly electropositive metals including sodium.
