O jump up to a higher energy level
are absorbed into the nucleus
O are ejected from the nucleus
Answer:
After jumping to the higher energy level also called the excited state the excited electron would be in a less stable position, so it would quickly emit a photon to relax back to a lower, more stable energy level.
Answer:
Explanation:
Rusting of iron occurs during the reaction of iron and oxygen in the presence of moisture to form hydrous iron (III) oxide, which is a reddish brown substance.
By virtue of this, the atoms which are reactants in the redox reaction would e oxygen and iron.
I hope this was clear and easy to understand.
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an element
a compound
two metal anions
a metal cation and a nonmetal anion
two nonmetal cations
ionic compounds are held together by ionic bonds are formed by the transfer of electrons from a metal to a non metal
Ionic bond is formed by the electrostatic attraction between the oppositely charged ions.
metals give out electrons and becomes positively charged. positively charged ions are called cations. so these are called metal cations
the electrons given out are taken in by non metals and become negatively charged. negatively charged ions are called anions. then they are called non metal anions.
so ionic compounds are formed by the electrostatic attraction between metal cations and non metal anions.
therefore ionic compounds are composed of a metal cation and a nonmetal anion
(2) crystallization (4) transmutation
The spontaneous decay of an atom is known as transmutation.
• The conversion of one chemical element or an isotope into another chemical element is termed as nuclear transmutation.
• It takes place in any process where the number of neutrons or protons in the nucleus of an atom is changed.
• It is the spontaneous decay of an atom.
• Transmutation can be attained either by radioactive decay or by nuclear reactions. In radioactive decay no external cause is required, while in nuclear reactions an external particle reacts with a nucleus.
• One kind of natural transmutation is witnessed when some kind of radioactive elements found in nature spontaneously decay by a procedure that leads to transmutation like beta or alpha decay.
Thus, the correct answer is option 4, that is, transmutation.
To know more about:
Answer:
the awnser is minerals :)
Explanation:
just took the test on edg.
(2) It requires an external energy source.
(3) It uses radioactive nuclides.
(4) It undergoes a spontaneous redox reaction.