A molecule is the smallest particle of a substance that exists independently. Molecules of most elements are made up of only one of atom of that element. Oxygen, along with nitrogen, hydrogen, and chlorine are made up of two atoms. Look at the model of oxygen above.The two balls represents the two oxygen molecules. molecule is the smallest particle of a substance that exists independently. Molecules of most elements are made up of only one of atom of that element. Oxygen, along with nitrogen, hydrogen, and chlorine are made up of two atoms. Look at the model of oxygen above.
A Roth IRA is funded with after-tax money. With a Roth, you pay taxes before you contribute and will only owe taxes on the earnings, not your contributions, when you withdraw money. You can withdraw money without penalty from a traditional IRA once you reach age 59 1/2, and you must begin taking money out at 70 1/2.
In the simplest terms, not accounting for compounding, fees, dividends, and other factors, your earnings are $272.50. That means your account total is $5,272.50. Under Roth IRA rules (check IRS Publication 590 for more information), you can withdraw up to $5,000 without paying taxes on it, and without paying a penalty.Once you dip into your earnings â that $272.50 â the story changes. You can withdraw what you have contributed at anytime, and for any reason.n the simplest terms, not accounting for compounding, fees, dividends, and other factors, your earnings are $272.50. That means your account total is $5,272.50. Under Roth IRA rules (check IRS Publication 590 for more information), you can withdraw up to $5,000 without paying taxes on it, and without paying a penalty.