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How does the number of valency electrons help to explain why aluminium is a metal and iodine and bromine are non-metals?
Wiki User
∙ 7y ago
Simple rule of thumb: elements with 1, 2, or 3 valence electrons are metals; elements with 6, 7, or 8 valence electrons are non-metals. Elements with 4 or 5 electrons can go either way; they tend to be non-metals at low Z with increasing metallic character as Z increases (so carbon is pretty definitely a non-metal, while bismuth is pretty metallic, and even astatine ... which has 7 electrons ... exhibits some metallic properties, though it's difficult to say for sure because all known isotopes of astatine are highly radioactive; its most stable isotope has a half-life of only 8.1 hours ... for comparison consider probably the most well-known radioactive element, uranium, whose most stable isotope has a half-life of over four billion years).
Wiki User
∙ 7y ago
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When atoms of nitrogen and oxygen combine will they form ionic or covalent bonds explain?
will form covalent bond since they're both nonmetals+ since losing/gaining electrons takes a lot of energy, the # of electrons in their outewr shells will make it difficult .. so, the alternative is sharing electrons... ~Hetaliafan~ Hope this helps!! :) ionic=metal+nonmetal covalent= nonmetals metallic= metals
Use ionization energy to explain why metals lose electrons more easily than nonmetals?
Metals lose electrons more easily than the non-metals because they require less ionization energy compared with the non-metals. The metals require less ionization energy to lose the electrons than though gain the electrons unlike the non-metals.
Explain three differences between ionic and covalent compounds?
Ionic bonds occur between a metal and non metal; electrons are removed or added between elements; and are good conductors of heat and electricity in water. Covalent bonds occur between two non metals; electrons are shared; and not good condctors
Explain why the addition of bromine to trans-cinnamic acid takes place more slowly than the addition of bromine to a normal alkene like 3-hexene or cyclohexane?
Yea
Is aluminum chloride a covalent or ionic compound?
Aluminum chloride is an ionic compound because aluminum is a metal and chlorine is a nonmetal. When a metal and a nonmetal are combined they make up an ionic compound. Incorrect. Aluminium Chloride is covalent.
When bromine reacts with other elements it gains electrons gaining electrons does not effect the mass of the bromine atoms explain why?
electrons have no mass
When atoms of nitrogen and oxygen combine will they form ionic or covalent bonds explain?
will form covalent bond since they're both nonmetals+ since losing/gaining electrons takes a lot of energy, the # of electrons in their outewr shells will make it difficult .. so, the alternative is sharing electrons... ~Hetaliafan~ Hope this helps!! :) ionic=metal+nonmetal covalent= nonmetals metallic= metals
Use ionization energy to explain why metals lose electrons more easily than nonmetals?
Metals lose electrons more easily than the non-metals because they require less ionization energy compared with the non-metals. The metals require less ionization energy to lose the electrons than though gain the electrons unlike the non-metals.
Is aluminium a mixture or a compound or an element Explain the question?
Aluminium is a chemical element because all atoms are identical.
Explain Why are fluorine bromine iodine and chlorine are diatomic elements?
They all have 7 outermost electrons and want to get to a stable octet. The easiest way to do this is to pair up and share an electron so they both have 8 and hence they are diatomic.
Explain three differences between ionic and covalent compounds?
Ionic bonds occur between a metal and non metal; electrons are removed or added between elements; and are good conductors of heat and electricity in water. Covalent bonds occur between two non metals; electrons are shared; and not good condctors
Explain why the addition of bromine to trans-cinnamic acid takes place more slowly than the addition of bromine to a normal alkene like 3-hexene or cyclohexane?
Yea
Is aluminum chloride a covalent or ionic compound?
Aluminum chloride is an ionic compound because aluminum is a metal and chlorine is a nonmetal. When a metal and a nonmetal are combined they make up an ionic compound. Incorrect. Aluminium Chloride is covalent.
What does the model of a sea of electrons help explain?
It helps explain metallic bonds.
Are nonmetals solid nonmetals are brittle?
The difference in properties between metal and nonmetal solids (i.e. brittleness, malleability, conduction of both heat and electrical current) is due to availability or absence of free electrons. Contrarily to abundance of free electrons in metals, free electrons are much fewer in nonmetal objects. Electrons that are not bound to atoms are free to roam about, and that is what free electrons do (everywhere) in a piece of metal. These electrons would take impact energy and (practically instantly) distribute it throughout the piece, acting like a bumper in a car. It helps to remember that things are mostly empty space as that is how atoms are. Atomic properties explain also the difference in heat transfer: metals feel cold on a touch because free electrons immediately take energy from a tip of a finger and 'run away with it.' (We feel something is colder when we give out energy, instead of receiving it.) E.Silvermint
Liquid bromine placed in a gas jar for one hour will diffuse throughtout the jar. Explain what happens to the liquid bromine in terms of particles?
senior chemistry textbook? im on that question!
Is aluminum an ore explain?
yes an aluminium is an ore, it it found in a rock and can be extracted very easily
