Please write this answer truthfully and quickly. The correct answer will be marked as brainliest.
Answers
Answer:
Metals have lustre, while non-metals graphite and iodine also have metallic shine
Sodium and potassium have low melting points. Mercury is liquid at room temperature. Carbon, a nonmetal, has high melting point. Bromine, a nonmetal, is liquid at room temperature.
Alkali Metals have high density, but Lithium density is 0.53. Iodine, a nonmetal, has density of 4.9
Graphite and carbon in gas form are good conductor of electricity. Metals Bismuth and lead are not good conductors.
Diamond, a nonmetal is the hardest material, and Potassium and sodium are so soft, they can be cut with knife.
All metals do not release hydrogen on acting with acids- gold, silver, copper, platinum.
If we consider minerals and compounds in nature, mica is very good conductor of heat, but bad conductor of electricity. As a rule, good conductors of electricity are also good conductors of heat.
When metal is hit , it produces sound. Mercury is exception.
All metals are malleable. Mercury is exception.
Metals are insoluble in water, but sodium and potassium react violently to form soluble hydroxides on contact with water.
There will still be some more, but these come to my mind.
Answer:
Exceptions are lithium, sodium and potassium. The density of these elements is lower than that of water and hence they do not sink. Most of the non-metals have very low density. Exception is diamond, a form of carbon.
Explanation:
That's your answer.
Hope this helps.
Mark me as brainliest.
Thank you.