Chemistry
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.
Periodic Table
ICSE 2016
72 Likes
Answer
(i) If an element has a low ionization energy then it is likely to be metallic.
(ii) If an element has seven electrons in it's outermost shell then it is likely to have the smallest atomic size among all the elements in the same period.
Answered By
44 Likes
Related Questions
Write the correct symbol > (greater than) or < (less than) in the statements :
(i) The ionization potential of potassium is ………. that of sodium.
(ii) The electronegativity of iodine is ………. that of chlorine.
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?
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)
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.