Chemistry
Which one of the following has the largest atomic radius ?
- Sodium
- Potassium
- Magnesium
- Aluminium
Periodic Table
49 Likes
Answer
Potassium.
Reason — Sodium (Na), Magnesium (Mg) and Aluminium (Al) belong to period 3 whereas Potassium (K) belongs to period 4. As atomic size increases on moving down the group hence, Potassium has the largest atomic radius of the given elements.
Answered By
32 Likes
Related Questions
An element X belongs to 3rd period and 17th group, state
(i) No. of valence electrons in it.
(ii) Name of the element.
(iii) Name the family to which it belongs.
(iv) Write the formula of the compound formed when X reacts with .
The given table shows elements with same number of electrons in its valence shell.
Elements A B C m.p. 63.0 180.0 97.0 State :
(i) Whether these elements belong to same group or period.
(ii) Arrange them in order of increasing metallic character.
Which one has the largest size?
- Br
- I
- I-
- Cl
The metals of group 2 from top to bottom are Be, Mg, Ca, Sr, and Ba
(i) Which one of these elements will form ions most readily and why ?
(ii) State the common feature in their electronic configuration.