Which amongst the given elements will lose their valence electrons to form a negative ion?

Open in App

Solution

Suggest Corrections

Similar questions

Q. Use the letters only written in the Periodic Table given below to answer the questions that follow :
(i) State the number of valence electrons in atom

J

.
(ii) Which element shown forms ions with a single negative charge?
(iii) Which metallic element is more reactive than

R

?
(iv) Which element has its electrons arranged in four shells?

Q. a) write the no. of valence electrons in 1) Na atom and Na+ ions , (2) O atom and O-2 ion . (B) an element ' E ' loses 2e to form E+2 ion .what will be the chemical formula of the compound formed between E and oxygen .

233. Group VII elements are strong non-metals because they can easily accept an electron to form an anion whereas group I elements are strong metals because they can very easily lose one electron to form a cation. Metals have the tendency to lose their valence electrons and form positive ions, so metallic character is related to the ionization potential. Elements having low ionization potential, lose easily. Thus, a metallic character generally decreases across a period and increases down a group.

Group 1 and Group 2 elements are considered strong metals because

Atoms of ___ elements that have 1, 2 or 3 valence elelctrons can lose electrons to atoms of ___ elements which have 5, 6 or 7 electrons, thereby forming an electrovalent compound.

Group VII elements are strong non-metals because they can easily accept an electron to form an anion whereas group I elements are strong metals because they can very easily lose one electron to form a cation. Metals have the tendency to lose their valence electrons and form positive ions, so metallic character is related to the ionization potential. Elements having low ionization potential, lose easily. Thus, a metallic character generally decreases across a period and increases down a group.

Which of the following is the correct decreasing order of metallic character?

Join BYJU'S Learning Program