Which of the following elements has properties different than the rest? ac co cu sc

Option (a) is the correct answer.

Explanation:

The elements cobalt (Co), copper (Cu), and Scandium (Sc) are all d-block elements and are also known as transition elements. Thus, all these show similar properties as all of them are transition elements.

Whereas Actinium (Ac) is a lanthanide series or f-block element. It shows different properties as compared to transition elements.

Thus, we can conclude that out of the given options, Ac has properties different than the rest.

ecological efficiency: % of usable energy transferred as

biomass from one trophic level to the next typical is 10% efficient (90% of

energy is lost),is diagramed as the pyramid of energy flow. then osprey eagle

are tertiary consumer and the shrimp are primary consumer, so to balance

mass of shrimp (1/0.1) / 0.1 = 100 kg 

regents of the university of california v. bakke, 438 u.s. 265 (1978), was a landmark decision by the supreme court of the united states. it upheld affirmative action, allowing race to be one of several factors in college admission policy.