Everyday Science · Atoms, Elements & Compounds · page 9 of 15
Some Important Elements MCQs with Answers
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- 81.
Flame test of Copper Halide with bluish-green color identifies the presence of ?
- 82.
Which element is the second most abundant in the Earth's crust after oxygen?
- 83.
The horizontal row of the periodic table is called period. The atomic number of Neon (Ne) is 10, it belongs to which one of the following periods?
- 84.
Which of the following is a metalloid?
- 85.
The most common element found on Earth is _?
- 86.
In periodic table symbol for Gold is?
- 87.
Which of the following bio-element is present in highest percentage in living organisms?
- 88.
Which of the following is the second-lightest element?
- 89.
The existence of an element in more than one crystalline form is known as ?
- 90.
Which one of the following is not included in the S-block?