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Who suggested that most of the mass of the atom is located in the nucleus?
In 1911, Ernest Rutherford discovered that at the core of every atom is a nucleus. Atomic nuclei consist of electrically positive protons and electrically neutral neutrons. These are held together by the strongest known fundamental force, called the strong force.
In 1911, Ernest Rutherford discovered that at the core of every atom is a nucleus. Atomic nuclei consist of electrically positive protons and electrically neutral neutrons. These are held together by the strongest known fundamental force, called the strong force.
See lessWhich radioactive pollutant has recently drawn to public, due to its occurrence in the building material?
Thorium radioactive pollutant has recently drawn attention of public due to its occurrence in the building material. Thorium is a naturally-occurring, slightly radioactive metal discovered in 1828 by the Swedish chemist Jons Jakob Berzelius, who named it after Thor, the Norse god of thunder.
Thorium radioactive pollutant has recently drawn attention of public due to its occurrence in the building material. Thorium is a naturally-occurring, slightly radioactive metal discovered in 1828 by the Swedish chemist Jons Jakob Berzelius, who named it after Thor, the Norse god of thunder.
See lessIsotopes are separated by?
Mass spectroscopy is the technique which involves separation of elements based on their atomic masses. As isotopes have had same atomic number but different mass numbers they can be separated using mass spectroscopic techniques.
Mass spectroscopy is the technique which involves separation of elements based on their atomic masses. As isotopes have had same atomic number but different mass numbers they can be separated using mass spectroscopic techniques.
See lessWhat is used as a moderator in nuclear reactor?
The commonly used moderators are water, heavy water (D2O) and graphite. This reduces the speed of fast neutrons and helps in sustaining nuclear chain reaction.
The commonly used moderators are water, heavy water (D2O) and graphite. This reduces the speed of fast neutrons and helps in sustaining nuclear chain reaction.
See lesswhat does a chronometer measures?
Chronometer is an instrument for measuring time accurately in spite of motion or variations in temperature, humidity, and air pressure.So it can be used a a clock for determining the longitude of a vessel at sea.
Chronometer is an instrument for measuring time accurately in spite of motion or variations in temperature, humidity, and air pressure.So it can be used a a clock for determining the longitude of a vessel at sea.
See lesskilohertz is a unit which measures?
A kilohertz is a unit of measurement of radio waves. One kilohertz is a thousand hertz.
A kilohertz is a unit of measurement of radio waves. One kilohertz is a thousand hertz.
See lessWhat is the unit for measuring the amplitude of a sound?
The amplitude of sound is measured in decibel following the Bel System.
The amplitude of sound is measured in decibel following the Bel System.
See lessThe main constituents of pearls are
Pearls are made primarily of calcium carbonate, so they can be dissolved in vinegar. Calcium carbonate is susceptible to even a weak acid solution because the crystals react with the acetic acid in the vinegar to form calcium acetate and carbon dioxide.
Pearls are made primarily of calcium carbonate, so they can be dissolved in vinegar. Calcium carbonate is susceptible to even a weak acid solution because the crystals react with the acetic acid in the vinegar to form calcium acetate and carbon dioxide.
See lessBell metal is an alloy of?
Bell metal is a hard alloy used for making bells and related instruments, such as cymbals. It is a form of bronze, usually approximately 4:1 ratio of copper to tin (e.g., 78% copper, 22% tin by mass).
Bell metal is a hard alloy used for making bells and related instruments, such as cymbals. It is a form of bronze, usually approximately 4:1 ratio of copper to tin (e.g., 78% copper, 22% tin by mass).
See lessWhich metal pollute the air of a big city?
Lead is the metal which pollutes the air of big cities. Due to the usage of lead petroleum, when lead is emitted out, it causes damage to air, and is a major pollutant.
Lead is the metal which pollutes the air of big cities. Due to the usage of lead petroleum, when lead is emitted out, it causes damage to air, and is a major pollutant.
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