Given the table below, what is the chemical formula for a compound between rb and the nitrate ion no3 -1? nitrate ion no3 -1 phosphate po4 -3 sulfate so4 -2 acetate c2h3o2 -1 ammonium nh4 +1 chromate cro4 -2 carbonate co3 -2 dichromate cr2o7 -2 permanganate mno4 -1 sulfite so3 -2 rbno3 rb2no3 rb(no3)2 rb2(no3)3
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Explanation: The oxidation number of Al is +3 since it is in group 3 ( Al+3).
Sulfur is in group 6 and has an oxidation of -2 since it is a nonmetal and an anion.
Criss cross the charges and write them as subscripts.
So the chemical composition is
The chemical formula of a compound formed between aluminium and chlorine atom will be
Aluminium is the 13th element of the periodic table with electronic configuration of
As, this element will easily loose 3 electrons and hence will show an oxidation state of +3.
Chlorine is the 17th element of the periodic table with electronic configuration
This element will easily gain 1 electron and shows an oxidation state of -1.
By criss-cross method, the oxidation state of aluminium and chlorine gets exchanged and thus they form the coefficients of the compound.
The compound formed by the combination of aluminium and chlorine will be
Hence, the chemical formula for the compound will be
Aluminum fluoride (AlF3) is an inorganic compound in which aluminum and fluoride has ionic bond between each other.
Aluminum ( atomic number - 13) has 3 valence electrons and can lose 3 electrons to get a stable configuration while fluorine (atomic number - 9) can gain one electron to make a stable configuration. So in order to attain a stable configuration one aluminum (Al) atom form ionic bond with three fluorine atoms and form AlF3.
Hence, the chemical formula between Al and F is AlF3.
Atomic number of lithium is 3 with electronic distribution 2, 1. So, to attain stability lithium loses 1 electron and becomes ion.
Atomic number of oxygen is 8 with electronic distribution 2, 6. So, to attain stability oxygen needs to gain two electrons and thus becomes ion.
Therefore, a neutral molecule will have charges balanced between the combining atoms.
Hence, when lithium and oxygen atoms combine together then they will form compound .
Explanation:Li has 3.0 electrons in his atom and its electronic configuration is 2,1.Br has 35.0 electrons i his atom and its electronic configuration 2,8,18,7.Li has only one electron in its outermost shell and needs losing it to reach stability.While, Br has 7 electrons in its outermost shell and needs gaining 1.0 electron to reach stability "octet rule".So, Li and Br bonded by 1:1 ratio and the chemical formula is LiBr.
Note that the group number in this answer refers to the new IUPAC group number, which ranges from 1 to 18. Counts from the left. Start with the first two column (group 1 and 2), go on to the transition elements (Sc, Ti, etc. in group 3 through 12), and continue with the nonmetals (group 13 through 18).
Li is a group 1 metal. As a metal, it tends to form positive ions ("cations"). Metals in group 1 and 2 are main group metals. The charge on main group metal ions tends to be the same as the group number of the metal. Li is in group 1. The charge on an Li ion will be +1. Formula of the Li ion will be .
Br is a group 17 nonmetal. As a nonmetal, it tends to form negative ions ("anions"). The charge on nonmetal ions excepting for H tends to equal the group number of the nonmetal minus 18. Br is in group 17. The charge on a Br ion will be 17 - 18 = -1. Formula of the Br ion will be
All the ions in an ionic compound carry charge. However, some of the ions like are positive. Others ions like are negative. Charge on the two types of ions balance each other. As a result, the compound is overall neutral.
1 × (+1) + 1 × (-1) = 0. The positive charge on one ion balances the negative charge on one ion. The two ions would pair up at a 1:1 ratio.
The empirical formula for an ionic compound shows all the ions in the compound. Positive ions are written in front of negative ions. is positive and is negative. The formula shall also show the simplest ratio between the ions. For the compound between Li and Br, a 1:1 ratio will be the simplest. The "1" subscript in an empirical formula can be omitted. Hence the formula: LiBr.
Nasub2OSsub4 Na_2OS_4 idk how to type out but...
the answer is cacl2. hope this helps