Description : Which of the following elements react with metals to form their binary compounds exhibiting `-3` oxidation state ?
Last Answer : Which of the following elements react with metals to form their binary compounds exhibiting `-3` oxidation state ? A. N B. P C. As D. Bi
Description : What do the group 1 elements form when when they react with oxygen?
Last Answer : Need answer
Description : What elements that are likely to react with sodium?
Last Answer : Halogens react with sodium.
Description : What would happen to an elements charge if you add or take away an electron?
Last Answer : It will change.
Description : Enhancer elements have all the following features except (A) They increase gene expression through a promoter (B) Each enhancer activates a specific promoter (C) They may be located far away from the promoter (D) They may be upstream or downstream from the promoter
Last Answer : Answer : B
Description : Iron which resembles Cobalt and Nickel in properties has been placed far away from these elements. This was one of the limitations of : (1) Modern periodic table (2) Newland's law of octaves (3) Dobereiner's triads (4) Mendeleev's periodic table
Last Answer : (2) Newland's law of octaves Explanation: Among the major limitations of Newlands Law of Octaves, some similar elements have been separated from one another while some dissimilar elements have been placed in the same column.