Does atom exist independently?
Atoms of most elements are not able to exist independently
. Atoms form molecules and ions. These molecules or ions aggregate in large numbers to form the matter that we can see, feel or touch.
Why do atom Cannot exist independently?
∙ Other atoms like oxygen and nitrogen cannot exist independently as
they do not have stable electron configuration
. So, they bond with other atoms to form molecules O2,N2. Was this answer helpful?
Which can exist independently atoms or molecules?
Solution :
Molecules can exist independently
. However, the atoms of noble gases (He, Ne, Ar, Kr, Xe) can also exist independently.
Can atoms be alone?
Can atoms exist independently Class 9?
The atoms of only a few elements called noble gases (Such as helium, neon, argon and kryton, etc.) are chemically unreactive and exist in the free state or independently
. Atoms of most of the elements are chemically very reactive and do not exist in the free state or independently.
How do atoms exist?
Atoms exist in free states in the form of molecule
. Molecule may be formed by the combination of two or more similar atoms of an element, such asoxygen molecule is formed by the combination of two oxygen atoms, molecule of hydrogen which is formed by the combination of two hydrogen atoms.
What is mean by exist independently?
a
to be actual rather than merely possible
. b to be a member of the domain of some theory, an element of some possible world, etc. c to have contingent being while free, responsible, and aware of one’s situation.
Can carbon atom exist independently?
Is it possible to have a (free-standing) single atom of carbon?
Yes, it is just the matter of having appropriate physical conditions
. So, for instance, atomic carbon exist in the gas phase above 3,642 °C (according to Wikipedia).
Which of the following can not exist independently?
Answer. Explanation: Because
Carbon or Oxygen
can’t exist independently because Oxygen needs 2 atoms to become inert gas.
Why is an atom 99.99 empty space?
In reality, atoms do not contain any empty space. Rather,
they are filled completely with spread-out electrons
, making the shrinking of atoms impossible.
Are atoms alive?
Atoms are not living things
; they do not need food, water, and air; and they do not reproduce themselves. Cells are alive. Cells are bigger than atoms. We can see cells with a microscope.
What is a single atom called?
Some elements are monatomic, meaning they are made of a single (
mon-
) atom (-atomic) in their molecular form. Helium (He, see Fig. 2.8) is an example of a monatomic element.
Are atoms actually real?
Of course you know
atoms are real
! The very first thing you learnt in chemistry was that tiny unseeable balls, known as atoms, make up almost everything around us. This includes the screen you’re reading off and your eyes doing the work.
Can atoms be created?
Atoms cannot be created nor destroyed
, and they are indestructible; they cannot be broken into smaller parts. This was based on the Law of Conservation of Mass. It was later learned that atoms can break into smaller parts. Chemical reactions involve a separation, combination, or rearrangement of atoms.
How did Einstein prove atoms existed?
In 1827, the English botanist Robert Brown noticed that pollen seeds suspended in water moved in an irregular “swarming” motion. Einstein then reasoned that
if tiny but visible particles were suspended in a liquid, the invisible atoms in the liquid would bombard the suspended particles and cause them to jiggle
.
What is independent existence in chemistry?
Substance whioch exists in nature in stable state withouit being dependent on any other substance
is called as independent existance. Molecules exist in independent existence. Nobel gases exist in atomic state and exist in independent state.
Which of the following has an independent existence?
Solution : Only atoms of
noble gases
`(He, Ne, Ar,etc)` can exist independently. Atoms of other elements exist in the from of molecules.
What is loss of independent existence?
Are atoms always neutral?
Can hydrogen exist independently?
Hydrogen has only 1 Electron so it is not stable and
cannot exist indepently
. It either loses an electron, gains an electrons, or share its electrons with another Hydrogen atom.
Can ions exist independently?
Ions of like charge repel each other, and ions of opposite charge attract each other. Therefore,
ions do not usually exist on their own
, but will bind with ions of opposite charge to form a crystal lattice. The resulting compound is called an ionic compound, and is said to be held together by ionic bonding.
Which atoms Cannot join together?
Some of the noble gases are
Helium, Argon, Krypton, Neon, Radon and Xenon
. These elements are non-reactive or they do not show any chemical reactivity. This is basically due to their stable electronic configurations.
How many atoms are there in total?
Do atoms last forever?
Remember, though, that the best estimate of the present age of the universe is the much smaller number of 10
10
years, so for all practical purposes,
atoms are forever
.
Can atoms be destroyed?
Atoms can be destroyed
, in the sense that their energy is converted to completely different forms. For example, an atom might collide with an antimatter atom, leaving only high-energy light rays.
Can your finger go through a wall?
This is
impossible with any academically known technologies
. But, theoretically it is possible with extremely vanishingly small probability in a Universe.
Can the human eye see atoms?
How are atoms born?
About 13.8 billion years ago, almost simultaneously with the birth of the universe in the Big Bang,
electrons, protons and neutrons were born
. The equivalent to a single proton is a nucleus of hydrogen. Then came the birth of hydrogen atoms and helium atoms from protons and neutrons.
Is brain living or nonliving?
What are inside atoms?
Are humans made of atoms?
About 99 percent of your body is made up of atoms of hydrogen, carbon, nitrogen and oxygen
. You also contain much smaller amounts of the other elements that are essential for life.
Are atoms solid or liquid?
Who proved that atoms exist?
In 1808, chemist
John Dalton
developed a very persuasive argument that led to an amazing realization: Perhaps all matter (i.e., stuff, things, objects) is made of tiny, little bits.
Are atoms just a theory?
For this reason,
atoms are still considered a theory
, a very strong theory, but a theory none the less. Introducing the Atomic Theory: Atomic theory is a theory that attempts to answer the questions above. It states that all matter is made of extremely small particles called atoms.
Has any scientist seen an atom?
No one has ever really seen an atom
. Humans like to see something before they believe in it. I am sure there are some people who object to that since there have been claims that electron microscopes have imaged atoms.
Is there anything smaller than atom?
Quark (noun, “KWARK”)
Subatomic means “smaller than an atom.”
Atoms are made up of protons, neutrons and electrons. Protons and neutrons are made of even smaller particles called quarks. Based on the evidence available today, physicists think that quarks are elementary particles.
