Question

What are transuranic elements?

Answer 1

Transuranic elements are a series of elements in the modern periodic table. The modern periodic table is also known as the long form of periodic table. They are the elements which are manmade and are unstable.

Complete Step by step solution:
The periodic table is the table of elements where all the elements are arranged periodically according to their repeating properties. There have been many periodic tables made in the past. The modern periodic table is the latest periodic table. The elements are sequenced as per their atomic numbers.
The modern periodic table consists of seven rows and eighteen columns. These seven rows are known as periods whereas the eighteen columns are known as groups. Each group comprises elements with similar chemical nature and in each period, the physical and chemical properties transition from left to right.
The other name of transuranic elements is transuranium elements. These elements are the ones in the modern periodic table with atomic numbers greater than that of uranium that is 92. Every member of transuranic elements is unstable. They have the property of decaying radioactively into other elements. Each transuranic element has some half life that differs among them.
Transuranic elements have been discovered in laboratories. The transuranic elements are as follows,
93: neptunium
94: plutonium
95: americium
96: curium
97: berkelium
98: californium
99: einsteinium
100: fermium
101: mendelevium
102: nobelium
103: lawrencium
104: rutherfordium
105: dubnium
106: seaborgium
107: bohrium
108: hassium
109: meitnerium
110: darmstadtium
111: roentgenium
112: copernicium
113: nihonium
114: flerovium
115: moscovium
116: livermorium
117: tennessine
118: oganesson
These are all transuranic elements from atomic number 93 to atomic number 118.

Note:
From neptunium to lawrencium, these transuranic elements also occur in the actinide series. After lawrencium, all elements are also known as transactinide elements. The lanthanoid and actinoid series are also known as f-block elements. The actinide series is mostly radioactive in nature.