Chemistry
Select the correct answer — The energy required to remove an electron from a neutral isolated gaseous atom and convert it into a positively charged gaseous ion is called ………. (electron affinity, ionization potential, electronegativity)
Related Questions
Use the letters only written in the Periodic Table given below to answer the questions :
I II III IV V VI VII O 1 L 2 Q E G J Z M 3 R 4 T (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 it's electrons arranged in four shells?
Fill in the blanks by selecting the correct word :
(i) If an element has a low ionization energy then it is likely to be ………. (metallic/non metallic).
(ii) If an element has seven electrons in it's outermost shell then it is likely to have the ………. (largest/smallest) atomic size among all the elements in the same period.
Match the atomic number 2, 4, 8, 15 and 19 with each of the following:
(i) A solid non-metal belonging to the third period.
(ii) A metal of valency 1.
(iii) A gaseous element with valency 2.
(iv) An element belonging to Group 2.
(v) A rare gas.
Arrange as per the instruction :
(i) He, Ar, Ne (Increasing order of the number of electron shells)
(ii) Na, Li, K (Increasing Ionization Energy)
(iii) F, Cl, Br (Increasing electronegativity)
(iv) Na, K, Li (Increasing atomic size).