Uses in knowing the Periodic Properties of Elements. 1  Predicting greater or smaller atomic size and radial distribution in neutral atoms and ions. 2  Measuring and comparing ionization energies. 3  Comparing electron affinities and electronegativities Predicting redox potential.
New York collects state income taxes using a progressive, eight-bracket system. For single taxpayers: 1  4 percent on the first $8,300 of taxable income. 2  4.5 percent on taxable income between $8,301 and $11,450. 3  5.25 percent on taxable income between $11,451 and $13,550.4  5.9 percent on taxable income between $13,551 and $20,850.5  6.45 percent on taxable income between $20,851 and $78,400. 4 percent on the first $8,300 of taxable income. 2  4.5 percent on taxable income between $8,301 and $11,450. 3  5.25 percent on taxable income between $11,451 and $13,550. 4  5.9 percent on taxable income between $13,551 and $20,850.
Illinois' income tax rates were last changed two years prior to 2015 for tax year 2013, and the tax brackets have not been changed since at least 2001. Illinois has a flat income tax rate which applies to both single and joint filers. The Federal Income Tax, in contrast to the Illinois income tax, has multiple tax brackets with varied bracket width for single or joint filers.