Which element is the most difficult to obtain?

The hardest pure element is carbon in the form of a diamond. Diamond is not the hardest substance known to man. Some ceramics are harder, but they consist of multiple elements.

What elements can you not collect?

Usually only the stable elements from hydrogen to bismuth (except the radioactive technetium and promethium) are collected, with the exceptions of the extremely long-lived thorium and uranium.

Are any elements illegal?

It’s not illegal to own almost any element (plutonium and certain types of enriched uranium excepted), but there are very strict shipping restrictions for radioactive and otherwise potentially dangerous elements. “There’s a certain number of elements, and we’re not constantly making more of them.

What element is the strongest?

Tungsten
The Top 10 Strongest Metals

Rank	Type of Metal	Atomic Weight
#1	Tungsten	183.84 u
#2	Steel	n/a
#3	Chromium	51.96 u
#4	Titanium	47.87 u

What is the most difficult mineral to find?

Diamond is the hardest known mineral, Mohs’ 10.

Can I buy all elements?

It’s possible to buy reasonably complete sets of 90+ elements for between $300 and $1700 depending on the size and quality of samples you want. You’ll get a nice wooden box with a grid of bottles or vials arranged in the form of a periodic table.

What element is the heaviest?

uranium
The heaviest naturally stable element is uranium, but over the years physicists have used accelerators to synthesize larger, heavier elements. In 2006, physicists in the United States and Russia created element 118.

What is the 2nd rarest element on earth?

Astatine
Electrons per shell	2, 8, 18, 32, 18, 7
Physical properties
Phase at STP	unknown phase
Atomic properties

What is toxic element?

Abstract. Toxic elements in food are defined as elements which can be present in food in amounts that can be potentially hazardous to human health.