what is the atoms?

Question

atoms

Answer 1

Atom

Helium atom ground state
A depiction of the atomic structure of the helium atom. The darkness of the electron cloud corresponds to the line-of-sight integral over the probability function of the 1s electron orbital. The magnified nucleus is schematic, showing protons in pink and neutrons in purple. In reality, the nucleus (and the wavefunction of each of the nucleons) is also spherically symmetric. (For more complicated nuclei this is not the case.)
Classification
Smallest recognized division of a chemical element
Properties
Mass : ≈ 1.67 × 10-27 to 4.52 × 10-25 kg
Electric charge : zero(if the number of electrons equal the number of protons in an atom)
Diameter : (data page) 50 pm(H) to 520 pm(Cs)
Number of atoms in the observable universe: ~1080 [1]

In chemistry and physics, an atom (Greek ἄτομος or átomos meaning "indivisible") is the smallest particle still characterizing a chemical element.[2] (átomos is usually translated as "indivisible" or "uncuttable." Until the advent of quantum mechanics, dividing a material object was invariably equated with cutting it.) Whereas the word atom originally denoted a particle that cannot be cut into smaller particles, the atoms of modern parlance are composed of subatomic particles:

* electrons, which have a negative charge, a size which is so small as to be currently unmeasurable, and which are the least heavy (i.e., massive) of the three;
* protons, which have a positive charge, and are about 1836 times more massive than electrons; and
* neutrons, which have no charge, and are the same size as protons.

Protons and neutrons make up a dense, massive atomic nucleus, and are collectively called nucleons. The electrons form the much larger electron cloud surrounding the nucleus.

Atoms can differ in the number of each of the subatomic particles they contain. Atoms of the same element have the same number of protons (called the atomic number). Within a single element, the number of neutrons may vary, determining the isotope of that element. The number of electrons associated with an atom is most easily changed, due to the lower energy of binding of electrons. The number of protons (and neutrons) in the atomic nucleus may also change, via nuclear fusion, nuclear fission, bombardment by high energy subatomic particles or photons, or certain (but not all) types of radioactive decay. In such processes which change the number of protons in a nucleus, the atom becomes an atom of a different chemical element.

Atoms are electrically neutral if they have an equal number of protons and electrons. Atoms which have either a deficit or a surplus of electrons are called ions. Electrons that are furthest from the nucleus may be transferred to other nearby atoms or shared between atoms. By this mechanism atoms are able to bond into molecules and other types of chemical compounds like ionic and covalent network crystals.

Atoms are the fundamental building blocks of chemistry, and are conserved in chemical reactions.

Answer 2

Atoms are the smallest particles that make up an element. Atoms go on to have subatomic particles called protons neutrones and electrones.
Protons have a positive charge, found in the nucleus of the atom.
neutrones have a neutral charge and are also found in the nucleus
electrons have an electrical charge and they are the ones that are usually involved in chemical bonding. They are also located outside the nucleus. they make up the volume of the atom because they orbit around the nucleus.
there is an equal number of protons neutrones and electrons in an atom.

Answer 3

Atoms are the basic building blocks of matter that make up everyday objects. A desk, the air, even you are made up of atoms!
There are 90 naturally occurring kinds of atoms. Scientists in labs have been able to make about 25 more.

Atoms are made up of three basic particles:
1.....Protons-carry a positive charge.
2.....Neutrons-carry no charge.

(Protons and Neutrons join together to form the Nucleus - the central part of an atom.)

3.....Electrons-carry a negative charge and circle the nucleus.

Answer 4

Atoms are the basic building blocks of matter that make up everyday objects. A desk, the air, even you are made up of atoms!
There are 90 naturally occurring kinds of atoms. Scientists in labs have been able to make about 25 more.

Answer 5

Atoms are the smallest structural unit of an element that has all the properties of the element.it does not take part in chemical reactions.the atom can further be broken down to electrons and protons and neutrons.

Answer 6

Made up of a nucleus and energy levels...

nucleus (in the middle) contains positively charged protons, and neutrons which have no charge..

whizzing around the outside of this you get electrons, which are negatively charged.

Because there are always the same number of electrons and protons in an atom, the overall charge of any atom is 0

the mass of protons is 1, as is the mass of neutrons...but the mass of electrons is negligible. (not a clue what the units of this are!)


Most of the atom is space (vacuum) between the nucleus and electrons

Answer 7

the atom is basically the building blocks of every element and thing we know of. for example every thing has atoms in it what type of atoms depends and what you contain like if a balloon was to contain helium it would not just contain it's own atoms but the atoms of the helium inside it. so technically what I'm am saying is you are technically what you eat

Answer 8

Middle.
Protons = + charged
Neutrons = No charge

Shell
Electrons = - charged

Loss
Electron loss = Ion
Proton loss = Isotope

Shell electrons
2 8 18 32 50 72

That is atleast the very most basic you need to know

Answer 9

an atom is the smallest particle of an element that takes part in a chemical reactions

Answer 10

Atom is a smallest possible or single particle of an element. It must have minimum one proton and one electron (Hydrogen) and some neutron. Number of protons decides the name of the element and difference in number of electron compared to protons decides the valance of that element at particular moment. If number of electrons is equal to number of protons the element is in neutral - elemental form. Atomic weight is always very near to the sum of number of protons and number of neutrons present in it.