A homonuclear molecule is formed when the combining atoms are of the same element. For example two hydrogen atoms combine together and form a stable homonuclear molecule - di-hydrogen\((\text{H}_2)\). On similar lines, a heteronuclear molecule consists of atoms of different elements.
Website Related Costs. Starting an affiliate marketing business is relatively inexpensive. The first item you will need is a website. Hosting plans vary and range from less than $20 to several hundred per month. Domain names generally cost around $15 per year, as of 2011.
Monthly charges to use advanced trading platform. You must make 30 or more trades per quarter for free access or pay $99.95 for a monthly subscription. This is a bit disappointing because several of the other brokers offer trading platforms that rival the E*TRADE Pro platform and they are completely free to use. Others have a similar method of charging, but the $99.95 or 30 trades per month is a pretty steep cost in addition to the already high trading costs.