Which total mass is the smallest?
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 two particles make up most of the mass?
-Protons and neutrons are the two particles of an atom that make up the most mass of an atom. Almost all of the mass in an atom is made up from the protons and neutrons in the nucleus with a very small contribution from the orbiting electrons.
Which two particles in an atom are equal in number?
An atom contains equal numbers of protons and electrons . Since protons and electrons have equal and opposite charges , this means that atoms are neutral overall.
Which particle in an atom has no charge?
Neutron
Who has no charge?
Proton—positive; electron—negative; neutron—no charge. The charge on the proton and electron are exactly the same size but opposite. The same number of protons and electrons exactly cancel one another in a neutral atom.
What is the meaning of 1 amu?
atomic mass unit
Which statement is true of atoms?
The statement that is TRUE about atoms is “electrons determine the size of the atom.” The electrons surround the nucleus of an atom and they determine the space in which an atom occupies.
What is atomicity class 10th?
Atomicity can be defined as the total number of atoms that composes a molecule. Simply put, it is the no of atoms present in a molecule. For example, each molecule of oxygen is composed of two oxygen atoms. Hydrogen, Oxygen is diatomic. Ozone is triatomic.
What is atomicity problem in DBMS?
An atomic transaction is an indivisible and irreducible series of database operations such that either all occurs, or nothing occurs. A guarantee of atomicity prevents updates to the database occurring only partially, which can cause greater problems than rejecting the whole series outright.