No. Barium and magnesium and calcium are in group 2A but potassium is in group 1A.
(2a + 1)(4a2 - 2a + 1)
6a to the second power minus 8ab + 2a
Usually, the easiest way to do this is to find a pair of numbers whose sum is equal to the coefficient of the first term, and whose product is equal to the product of the coefficients of the first and last terms: a + b = -3 a * b = -10 take all possible pairs of numbers that multiply to make negative ten: 1 * -10 = -10 -1 * 10 = -10 2 * -5 = -10 -2 * 5 = -10 and then find which one of those pairs also adds up to negative three: 1 + (-10) = -9 -1 + 10 = 9 2 + (-5) = -3 -2 + 5 = 3 So 2 and -5 are the coefficients we want. Now take our original equation: 10a2 - 3a - 1 and separate the middle term into two terms using those coefficients: 10a2 - 5a + 2a - 1 You can then factor a common term out of the first pair and last pair of terms: 5a(2a - 1) + 1(2a - 1) and then group your coefficients: (5a + 1)(2a - 1) Giving you the answer.
With the assumption your asking what a or b are in terms of each other. a=3b/(6b-2) b=2a/(6a-2)
bilat
since a=1a, 3a-1a=2a
group 1a , group 2a , transition elements , group 0 (inert gases)
No. Barium and magnesium and calcium are in group 2A but potassium is in group 1A.
1a+3b 2a+4b=3a +7b
The ionic charge of a group 1A, 2A, or 3A ion is determined by the number of electrons lost or gained to achieve a full valence shell. Group 1A ions lose 1 electron to attain a +1 charge, group 2A ions lose 2 electrons for a +2 charge, and group 3A ions lose 3 electrons for a +3 charge.
One example of a block element that is not located in group 1A or group 2A in the periodic table is carbon, which is a p-block element. Carbon is located in group 4A (14) of the periodic table and is known for its diverse bonding properties, forming a wide range of compounds.
Metals in group 1A, 2A, 3A can form mono-, di- and trivalent positive ions respectively, and all are metals except Boron, which is a metalloid (between Carbon -a nonmetal- and Berillium -a metal- in period II).
2a - a = a
-1a
Group 1A metals have an oxidation number of +1, group 2A metals have an oxidation number of +2, and group 3A metals have an oxidation number of +3.
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