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Why are all the elements in group 18 relatively unreactive whereas those in group 17 are very reactive?
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How do psychical and chemical properties of halogens compare with those of the inert gas?
At room temperature the lighter halogens, F, Cl are diatomic gases, Br is a liquid, I is a solid. All of the halogens are colored and toxic. The noble gases are all colorless odorless non chemically toxic monoatomic gases. (Radon is radioactive).
How do physical and chemical properties of the halogens compare with those of the noble gas?
the noble gases atre very unreactive and are oderless, tasteless and clourless under standard conditions whereas the group 7 halogens are a very reactive group.
What can less reactive metals be found as?
Less reactive elements are more likely to be found uncombined, that is as the element rather than as part of a compound. This is usually called being 'found native'. For instance gold mines contain actual pieces of gold, whereas an iron mine usually contains something like rust, which has to be converted by a chemical reaction to obtain the metal.
How reactive is osmium?
Osmium has varying states of reactivity. Its pure state tends be quite reactive and is rarely used unless alloyed. Osmium tetroxide is extremely reactive, whereas osmium dioxide has very little reactivity.
What characteristics of the atomic structure of helium make it so such less reactive the hydrogen?
Helium has completely filled orbitals and is stable whereas hydrogen has one valence electron and is reactive.
How do psychical and chemical properties of halogens compare with those of the inert gas?
At room temperature the lighter halogens, F, Cl are diatomic gases, Br is a liquid, I is a solid. All of the halogens are colored and toxic. The noble gases are all colorless odorless non chemically toxic monoatomic gases. (Radon is radioactive).
How do physical and chemical properties of the halogens compare with those of the noble gas?
the noble gases atre very unreactive and are oderless, tasteless and clourless under standard conditions whereas the group 7 halogens are a very reactive group.
What does it mean to say some elements are reactive and form ions easily whereas others do not?
Elements form ions by either gaining or losing valence electrons. The elements that lose electron(s) and gain electron(s) acquire a positive charge and negative charge respectively. The elements that lose and gain the least electrons require less ionization energy, and are more reactive than elements that need to lose or gain more electrons. For instance, elements in group 1 of the Periodic Table need to lose one electron, and are more reactive than elements in group 2 that need to lose 2 electrons.
What can less reactive metals be found as?
Less reactive elements are more likely to be found uncombined, that is as the element rather than as part of a compound. This is usually called being 'found native'. For instance gold mines contain actual pieces of gold, whereas an iron mine usually contains something like rust, which has to be converted by a chemical reaction to obtain the metal.
What is the difference between sodium and aluminum'?
Sodium is a highly reactive alkali metal whereas aluminium is a less reactive metal in the boron group.
What does it it mean to say that some elements are reactive and form ions easily whereas others do not?
Elements form ions by either gaining or losing valence electrons. The elements that lose electron(s) and gain electron(s) acquire a positive charge and negative charge respectively. The elements that lose and gain the least electrons require less ionization energy, and are more reactive than elements that need to lose or gain more electrons. For instance, elements in group 1 of the Periodic Table need to lose one electron, and are more reactive than elements in group 2 that need to lose 2 electrons.
Why is the arrangement of electrons in an element key to understanding why each element behaves the way it does?
The elements in the periodic table are arranged based on how reactive they are, which is based on how many electrons they have in their outer shell. For example, the elements on the ends are very reactive because on one side the elements have seven electrons and on the other the elements have one. The elements with one electron are trying to get rid of their electron whereas the elements with seven electrons are trying to find another to make their shell complete, as there are eight electrons in the outer shell of an electron shell.
How reactive is osmium?
Osmium has varying states of reactivity. Its pure state tends be quite reactive and is rarely used unless alloyed. Osmium tetroxide is extremely reactive, whereas osmium dioxide has very little reactivity.
Why are currents on the western coasts of continents relatively cold whereas the currents on the eastern coasts are relatively warm?
because of the Antarctica
What characteristics of the atomic structure of helium make it so such less reactive the hydrogen?
Helium has completely filled orbitals and is stable whereas hydrogen has one valence electron and is reactive.
Is malonate an inhibitor of fumarate?
Yes. Malonate is a competitive inhibitor because it is unreactive as dehydrogenation cannot occur. Malonate is in the cis form, whereas fumarate is in the trans form.
What is the least reactive group in the periodic table?
Noble gasses (group 8) are the least reactive elements in the periodic table because they have a full valence shell.The right-most column, Group 8*, or the noble gases, is the least reactive elements in the periodic table.* In newer version of periodic table by IUPAC, its the group 18; whereas it was the 8th A group that noble gases occupied in older version.
