Californium, with the atomic number 98, is a radioactive transuranic element. It is classified as an actinide because it occupies a position in the 5f series of the periodic table. Actinides are a group of fifteen metallic elements ranging from actinium to lawrencium, characterized by the filling of the 5f electron subshell. Like other members of this series, Californium exhibits properties typical of heavy, radioactive elements.
152
Which of the following metals is considered the heaviest?
Among the options provided, Uranium is a heavy actinide element with a high atomic mass (approximately 238 u) and a high density (19.1 g/cm³), making it significantly heavier than copper, aluminium, or silver.
153
Elements which emit natural radioactivity are known as __________ ?
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Manual review recommended: automated enrichment was incomplete for this item. The original answer and options were preserved. No Gemini key is configured. Add GEMINI_API_KEY to the local server environment or save a Gemini provider key in Settings.
155
Potential of SHE is considered as__________________?
Manual review recommended: automated enrichment was incomplete for this item. The original answer and options were preserved. No Gemini key is configured. Add GEMINI_API_KEY to the local server environment or save a Gemini provider key in Settings.
Manual review recommended: automated enrichment was incomplete for this item. The original answer and options were preserved. No Gemini key is configured. Add GEMINI_API_KEY to the local server environment or save a Gemini provider key in Settings.
157
The important function of burning zone in the rotary kilm is __________________?
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158
Triglycerides are easily hydrolyzed by enzymes called_________________?
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159
Which of the following ion formation is always exothermic ?
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160
What additive prevents engine knocking in gasoline?
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