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प्रश्न
Write the names of elements from the following symbol:
Pt
उत्तर
Pt- Platinum
संबंधित प्रश्न
Fill in the blan
An ________ is a homogeneous mixture of two or more metals.
Tick the most appropriate answer.
How many times is a proton heavier than an electron?
- 1500
- 1800
- 1840
- none of these
Name: A form of carbon used as a gem
Indicate whether the following statement is true or false:
Metals reflect light and are good conductors of electricity
Indicate whether the following statement is true or false:
Metals can be polished.
Tick (√) the correct alternative from the choice given for the following statement.
Sulphur and carbon are
Tick (√) the correct alternative from the choice given for the following statement
A non-metal which is a good conductor of electricity.
State what are radicals. Give the names of the radicals –
(a) NO3
(b) OH
(c) SO4
(d) CO3
Give the name of the radical - CO3
Complete the table:
| Element | Latin Name | Symbol |
| Mercury | ______ | Hg |
| Lead | Plumbum | ______ |
| Iron | ______ | Fe |
| Potassium | Kalium | ______ |
