All the isotopes of plutonium has 94 protons and 94 electrons. For the number of neutrons of a specified isotope: number of neutrons = rounded atomic mass of the isotope-atomic number (or protons number).
Canada thistle can be killed with either Roundup or 2,4-D weed killers. These weed killers will kill back the leaves on the plant and will kill back some of the root system. The best time to apply these weed killers is on sunny days when the temperatures are between 65 and 85 degrees F. (18-29 C.).hese weed killers will kill back the leaves on the plant and will kill back some of the root system. The best time to apply these weed killers is on sunny days when the temperatures are between 65 and 85 degrees F. (18-29 C.).
How to Kill Chickweed in the Lawn In lawn areas, pull chickweed from the ground to expose the soil. The soil should then be aerated with an aerator or shovel.If using a shovel, place gashes in the ground at least two to three inches deep and every one or two square foot.nce you do begin to water, continue to do so each day for about two to three weeks. Any leftover chickweed should begin to die while new grass replaces it. Whether you choose to eradicate chickweed manually or with an herbicide is up to you. However, the best way to kill chickweed is before it has time to set seed.