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Berkelium
Neptunium
Plutonium
Americum
Curium
Californum
Einsteinium
Ununtrium
Ununquadium
Ununpentium
Ununhexium
Ununseptium
Ununoctium
Radium
Uranium
Thorium
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∙ 13y ago
Wiki User
∙ 10y agotechnetium
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Is polonium a solid liquid or gas?
Polonium is a solid, man-made, radioactive poor metal.
The purpose of synthetic elements?
Some elements can't be found on Earth but are able to exist. That's why scientists make them. They are called synthetic because they were man made. These include elements 43, 61 and 84-118. These are technetium, Promethium and Polonium to Ununoctium. Elements 111-118 aren't identified as real elements yet.
What are the 5 man made heat sources?
Machines, Radioactivity Electricity
What is the fastest decaying element?
Many elements decay fast. All the elements after 92 are man made and decay, and all the ones over 104 decay rapidly, some with a half-life in the millionths of a second. Element 118, ununoctium, has a half-life of 0.89 mili-seconds.
How can there be so many different kinds of substances in the world?
There are so many different atoms or atoms with different numbers of protons which makes different elements or different substances. Everything is chemical and made up of chemical reactions. And the chemicals are all made up of atoms. Atoms combine to form elements, and elements combine to make up compounds and mixtures. For example, water. Hydrogen, an element itself, combines itself to another chemicals, which is Oxygen, to make a compound. Which gives you the result with water. Everything in the world is made up of chemical reactions. Some come naturally and most are made with mixtures and compounds. As you may know, there are tons of individual elements and when they are combine into bigger compounds they turn into substances like liquid, gas, or solid. It's all part of chemical reactions.
Is a characteristic of the actinides?
All actinides are radioactive elements and some are man made.
Is a characteristic of Actinides?
All actinides are radioactive elements and some are man made.
What elements is radioactive and synthetic well the answer is mendelevium?
Yes, mendelevium is man made and radioactive.
Why transuranic element known synthetic elements?
Because these radioactive elements were obtained artificially, they are man made.
How would you describe the elements that are listed after plutonium?
All these elements are man made, metals, radioactive and unstable.
Does all radioactive substances are manmade or artificial?
Radioactive elements both occur in nature (Uranium is the prime example) and are made through the works of man (Plutonium is man-made).
Is radioactive atoms the same as the sun?
No. The sun is made up of a ball of gases, and the only radioactive gas we know of is Radon. Also, most radioactive elements are man-made.
Which group of the periodic table is mostly man made radioactive elements?
Post-uranes
What are the unique properties of actinide metals?
They are mostly Synthetic elements (when nuclear particles are forced to crash into one another by a particle accelerator (machine)). These Elements are Radioactive.
How are elements made by man harmful?
Most of the elements, that are made by man, are highly unstable and extremely reactive. This means that they are mostly radioactive and definitely could pose a great risk to health.
Is seaborgium radioactive or sythetically made?
Seaborgium is radioactive and man made.
How Many Radioactive Elements Are Made in the Laboratory?
About 28 elements were discovered in the laboratory. But after the man made preparation some elements were discovered also in nature in very extremely traces: Pm, Tc, Pu, Np, Am, Cm, Bk.
