Which alkali metal has lowest atomic mass?
The alkali metal with the lowest atomic mass is lithium.
What metals can float on water?
The metals that can float on water are aluminum, brass, bronze, copper, gold, lead, and silver. Metals with a higher density than water will sink, while those with a lower density will float. This is why aluminum cans can be recycled – the metal is less dense than water and can be easily separated from the plastic.
Which is the lightest metal in periodic table?
The lightest metal in the periodic table is lithium. It has a density of 0.534 g/cm3.
What has the lowest electron affinity?
The electron affinity of an atom is the energy released when an electron is added to a neutral atom. The lowest electron affinity is found in atoms that have a full outer shell of electrons. These atoms are stable and do not need to gain or lose electrons to achieve stability.
Which is the heaviest metal?
There is no definitive answer to this question as the weight of a metal can vary depending on its composition. However, some of the heaviest metals include tungsten, platinum, and gold. Tungsten is often considered the heaviest metal, with a density that is almost twice that of lead.
Which element has lowest atomic radius?
The element with the lowest atomic radius is hydrogen. This is because hydrogen has only one electron in its outer shell, which makes it very reactive.
Which atom has the smallest atomic weight?
The atom with the smallest atomic weight is hydrogen.
Which of the following atoms has the lowest ionisation potential?
The atom with the lowest ionisation potential is helium. Helium has an ionisation potential of 24.6 electron volts.
What is the average atomic mass of copper?
The average atomic mass of copper is 63.546 amu.
Which is the lightest metal in the world?
The lightest metal in the world is lithium. It has a density of 0.534 grams per cubic centimeter.
Which has lowest first ionization enthalpy?
The element with the lowest first ionization enthalpy is fluorine. This is because it has a very strong electron affinity, meaning that it readily takes on electrons.
What element has the lowest atomic number?
Hydrogen has the lowest atomic number of 1.
Which metal has the largest atomic mass?
The largest atomic mass is found in uranium.
Which element has the lowest average atomic mass?
The element with the lowest average atomic mass is hydrogen. Its average atomic mass is 1.008 amu.
What is the mass number of aluminum?
The mass number of aluminum is 26.9815.
Which group contains lowest atomic mass metals?
The group of lowest atomic mass metals is the alkali metals. These are the elements in Group 1 of the periodic table: lithium, sodium, potassium, rubidium, cesium, and francium.
What metal is denser than water?
The metal that is denser than water is lead. This is because lead has a higher density than water, meaning that it takes up more space than water.
What group has the lowest first ionization energy?
The group with the lowest first ionization energy is the alkali metals. This is because they are very reactive and want to lose their one electron to become a cation.
Which non metal has the smallest atomic mass?
Hydrogen has the smallest atomic mass of any element. Its atomic mass is 1.0079 amu.
Which metal has lowest ionization energy?
The metal with the lowest ionization energy is cesium. This is because it has a very low electron affinity, meaning that it is very easy to remove an electron from the atom. Other metals with low ionization energies include rubidium and potassium.