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An atom is the smallest bit of an element that you can have. It contains a nucleus (which is made up of protons and (with the exception of hydrogen) neutrons. Around the nucleus are electrons. The quantity of all these things will depend on what element we are talking about amd are specific to that element. If you go any smaller then you do not have the element any more (apart from the situation where one or more electrons can be lost to or gained from another element when the two elements combine in a compound). A combination of atoms, either the same type of atoms or different ones, is called a molecule.
So, an atom is the smallest whole piece of an element, and it conatins electrons. One or more atoms joined together is a molecule.
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Describe the bonding in a water molecule?
A water (H2O) molecule is held together by covalent bonds. Since oxygen has a higer electronegativity than hydrogen, the bonding electron pairs tend towards the oxygen atom, making the oxygen atom a slight negative pole and the hydrogen atoms positive poles. With the additional V shape of the molecule that comes from oxygen's free electron pairs, the slightly polar bonds make the molecule a dipole with the negative pole on oxygen's side and the positive pole in the center between the hydrogen atoms. (This polarity is why a stream of water can be manipulated with a magnet.) The H2O molecule does not conduct electricity as there are no delocalised electrons.
When one atom loses an electron and another accepts that electron?
It depends on the exact situation. Probably ions Well this answer is vaguely correct. When an atom gains or loses an electron it becomes an ion. Ions with a net positive charge are called cations and ions with a net negative charge are anions. This allows for an ionic bond to occur. An ionic bond occurs when an anion binds with a cation.
Distinguish between molecules and atoms?
An atom is the smallest unit of matter that can't be divided, a molecule is a combination of atoms. A molecule is formed when several atoms of different elements combine. That's how we can get a molecule of water if we combine two atoms of Oxygen and one atom of Hydrogen.
Are atoms positive or negative?
Yes. It has both.The definition of "neutral" is zero net charge. Every atom has positive and negative charges among its components. If the atom is 'neutral', then the numbers of positive and negative charges are equal, and the atom's 'net' charge is zero.
What are negatively charged particles that orbit the nucles of an atom?
An electron is a negatively charged particle orbiting the atom's nucleus.
Which is bigger atom electron molecule or cell?
An electron is a part of a atom, and an atom is part of a molecule, molecules make up a cell. So a cell is biggest.
What happens when an atom that looses an electron comes in contact with an atom that has gained an electron?
An ionic molecule is formed.
Why the electron affinity is important?
Electron affinity for an atom is important to make it as a molecule.where atom is a small single one and molecule is the combination of two or more atoms.electron affinity is just a desire for attraction of electron by the atom.for example : We should have some affection for others to become their close relation like friends and live together in the same way a single atom should have desire [that is framed as ELECTRON AFFINITY] for electrons to be attached to form molecule
List in order from smallest to largest molecule atom electron proton compound?
Smallest to Largest.. - Electron - Proton - Atom - Compound - Molecule
What is the largest atom molecule cell electron?
Cell.
A hydrogen bond can form between a hydrogen atom of one molecule and which atom of another molecule?
since hydrogen atom has no electron in its shell, it acquires positive charge. when a negatively charged atom comes in contact with hydrogen atom, it donates h atom a electron to make a covalent bond. but when it breaks the negative atom restores its electron.
Why are ions made?
Ions are made for clothes can not be wrinkly An ion is formed when an atom [or molecule] gains or loses one or more electrons. If an atom or molecule gains an electron it acquires negative charge. If the atom or molecule loses an electron it becomes positively charged.
What type of bond is present between the atoms of a water molecule?
Covalent bonds. (Atom bindings that share electron pairs)
Is an electron bigger then an atom?
No. An electron as a particle is small however the probability cloud of an electron can be large- most of the volume of an atom consists of the electron cloud. In relation to this the nucleus, although it contains nearly all of the mass of the atom, is quite small.
Why NO2 dimerise?
In the NO2 molecule the nitrogen atom has a single unpaired electron. The molecule will tend to dimerise so that this unpaired electron can be paired with another to form the N2O4 molecule.
Where is an electrons?
The electron orbits around the nucleus of a molecule, where the neutrons and protons are.
What is the electron configuration?
The arrangement of the electrons in an atom is known as its electron configuration.
