If by “biggest” and “smallest”, you mean mass (which is a measure of how much matter is there), then the smallest is the hydrogen atom with one proton and one electron. Since electrons are about 2000 times less massive than protons (and neutrons), then the mass of an atom is mostly from the protons and neutrons.
Which of the following has smallest mass?
For answer choice d, we need to know the conversion for ounces to grams, which is one ounce = 28.35 grams. Since we only have a half-ounce, that comes out to 14.17 grams. Now we can see that in terms of mass, answer b is the smallest! Hope this helps!!
What is the smallest mass in an atom?
The atom with the smallest mass is the hydrogen atom; its mass is about 10-27 kg. The masses of other atoms go up to about 200 times this. The nucleus of an atom is about 10-15 m in size; this means it is about 10-5 (or 1/100,000) of the size of the whole atom.
Which particle has the least mass?
Answer. a proton has the least mass of all other ..
Does a proton have the smallest mass?
Explanation: Protons, neutrons and electrons are sub-atomic particles. Electrons actually behave as waves as well as particles but do still have a mass (it is just very small compared to a proton or neutron). … The smallest particles to have a ‘mass’ as we conventionally think of a mass are neutrinos.
What is the mass of 1 amu?
The atomic unit mass is symbolized as AMU or amu. 1 AMU = Average of the proton rest mass and the neutron rest mass. 1 AMU = 1.67377 x 10 -27 kilogram or 1.67377 x 10 -24 gram.
Which has the highest mass 50g of iron?
Complete answer:
(a)- 50 g of iron: In this option, the mass of the iron is directly given which is equal to 50 grams. The mass of 5 moles of nitrogen gas is 112 grams. (c)- 1 g atom of silver: 1 g atom means 1 mole of the element, so 1 g atom of the silver means there is 1 mole of silver atom.
What has mass but no charge?
neutron: A subatomic particle forming part of the nucleus of an atom. It has no charge. It is equal in mass to a proton or it weighs 1 amu.
Which subatomic has least mass?
The fundamental particle that has least mass is electron.
Who discovered the electron?
During the 1880s and ’90s scientists searched cathode rays for the carrier of the electrical properties in matter. Their work culminated in the discovery by English physicist J.J. Thomson of the electron in 1897.
What particle has no charge?
The protons have a positive electrical charge and the neutrons have no electrical charge. A third type of subatomic particle, electrons, move around the nucleus. The electrons have a negative electrical charge. An atom usually contains an equal number of positively charged protons and negatively charged electrons.
Which particle has the greatest mass?
Neutron has greatest mass. Proton is a subatomic particle with symbol p and positive electric charge of +1 elementary charge and mass slightly less than that of neutron.
Which particle has the most mass?
The subatomic particle with the largest mass is the neutron.
Which two particles have roughly the same mass?
The two subatomic particles that have the same mass are protons and neutrons.
Is there a charge on 1+?
A proton has positive charge of 1, that is, equal but opposite to the charge of an electron. A neutron, like the name implies, is neutral with no net charge. The charge is believed to be from the charge of the quarks that make up the nucleons (protons and neutrons).
Do electrons have mass?
Electrons belong to the first generation of the lepton particle family, and are generally thought to be elementary particles because they have no known components or substructure. The electron has a mass that is approximately 1/1836 that of the proton.