SELECT * FROM question_mgmt as q WHERE id=3608 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=9 AND subId=16 AND chapterId=256 and ex_no='2' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 10th science Periodic Classification of Element besides gallium which other elements have since b

Question:

Besides gallium, which other elements have since been discovered that were left by Mendeléev in his Periodic Table? (any two)

Answer:

Mendeleev predicted the existence of elements that were not discovered by that time. He added a prefix to the preceding element as Eka-boron, Eka-Silicon. Later the elements are discovered. Eka-boron as scandium and Eka-Silicon as Germanium.


< Previous Question

Next Question >

SELECT ex_no,question,question_no,id,chapter FROM question_mgmt as q WHERE courseId='9' AND subId='16' AND ex_no!=0 AND status=1 and id!=3608 ORDER BY views desc, last_viewed_on desc limit 0,10

  • Popular questions of class 10 Science

SELECT ex_no,question,question_no,id,chapter FROM question_mgmt as q WHERE courseId='9' AND subId='16' AND ex_no!=0 AND status=1 and id!=3608 ORDER BY last_viewed_on desc limit 0,10

  • Recently Viewed Questions of Class 10 Science

Comments

  • Answered by Ekta Mehta
  • 4 months ago

Taking Screenshots on your Samsung Galaxy M31s is very easy and quick.

  • Answered by Ekta Mehta
  • 4 months ago

Taking Screenshots on your Samsung Galaxy M31s is very easy and quick.

  • Answered by Ekta Mehta
  • 4 months ago

Taking Screenshots on your Samsung Galaxy M31s is very easy and quick.

Comment(s) on this Question


NCERT Solutions

Quick Links

Resources

Support