What is Nihonium Definition atomic number properties and uses
Element 113
Nihonium is a recently discovered element which came into the existence in 2003. Today, 118 elements are known to us. 94 elements out of these are naturally occurring whereas elements from atomic number 95 to 118 are synthetic elements. Synthetic elements are those elements which are artificially made by researchers and scientists. Nihonium is also a synthetic element. This element is extremely radioactive and has a half-life of 10 sec. This means in 10 seconds it reduces to half of its quantity. It is placed in the p-block of the periodic table. Nihonium isotopes are quite unstable and only Nh-286 is found stable.
Nh Element
Symbol of Nihonium- Nh
The atomic number of nh-113
Atomic Mass of nh - 286
Group- 13
Period-7
Electronic configuration-[Rn]5f¹⁴6d¹⁰7s²7p¹
Discovery of the Element 113
Nihonium was first invented by Russian American collaboration JINR-JOINT INSTITUTE FOR NUCLEAR RESEARCH in Dubna, Russia in 2003 and then by RIKEN collaboration of Japan in 2004. In 2015, IUPAC-International Union of Pure and Applied Chemistry, recognized it as an element and gave rights for the discovery and naming to Riken. Thus Riken named element 113 as 'Nihonium' to honor Japan as 'Nihon’ refers to Japan.
Experimentation
Nihonium was synthesized by the bombardment of calcium ions on the element Americium with the atomic number 95 in the cyclotron. This lead to the formation of Moscovium which has an atomic number of 115.
This element of moscovium undergoes an alpha decay process to form nihonium.
A very small amount of the element has been created till now.
Ununtrium
Nihonium is also known as the ununtrium. This name of Nihonium comes from the nomenclature rules proposed by IUPAC.
According to these rules, elements that have an atomic number greater than 100 are named using certain codes decided by the IUPAC. By the systematic naming, those metals which are not discovered can also be named as the names are directly derived by the atomic number of the element itself.
Following is the Set of Codes for Numbers in Atomic Number-
Thus Following this Code Nihonium gets its Name as Ununtrium.
ATOMIC No. of Nh= 1 1 3
↓ ↓ ↓
un un tri + um
↓
ununtrium (Uut)
Properties of Element 113
Most of the properties of niobium are only predicted as it is short-lived. Some of the properties are as follows-
Nihonium is found to be solid at temperature 20°C.
The melting point, boiling point, and density of nihonium are unknown but they are predicted to be greater than its group members.
Nh element belongs to the boron group(13 groups) of periodic table so its properties are assumed to resemble thallium.
It is assumed to be denser than the thallium.
Due to the spin-orbit splitting of 7p shell nihonium is chemically different from thallium and other elements of group 13.
It is present in the 7th period of the periodic table.
The crystal structure of Nihonium is assumed to be hexagonal close packing-hcp.
Nihonium is not found naturally. It is considered to be entirely synthetic.
Its oxidation states are assumed to be +1,-1 +3, and +5.
Nihonium is assumed to have a size greater than thallium following the group trend.
It is considered to be a transactinide element.
Uses of Nihonium
It is used only for scientific research.No other use of Nihonium is known till now.
Effect on Health
As compared to the other elements in the periodic table, until now there is no considerable reason given for stating the harmful effects of Nihonium. It is because they are highly unstable and exhibit a short span of the half-life.
Isotopes of Nihonium
Isotopes are those elements which are considered to have the same atomic number but different atomic mass.
Nihonium also has 6 chemically synthesized isotopes from Nh²⁷⁸ to Nh²⁸⁶. Other than these two more isotopes are unconfirmed Nh²⁸⁷ and Nh²⁹⁰.
Nh²⁸⁶ is the most stable as compared to others to all the other isotopes of Nihonium.
FAQs on Nihonium Element Overview and Key Characteristics
1. What is nihonium?
Nihonium is a synthetic, highly radioactive chemical element with atomic number 113 and symbol Nh. It belongs to Group 13 of the periodic table and is classified as a post-transition metal.
- Discovered in 2004 by RIKEN scientists in Japan
- Named after “Nihon,” meaning Japan
- Does not occur naturally; produced artificially in laboratories
- All isotopes are unstable and decay rapidly
2. What is the atomic number and symbol of nihonium?
The atomic number of nihonium is 113, and its chemical symbol is Nh.
- Atomic number 113 means it has 113 protons in its nucleus
- A neutral atom of Nh also has 113 electrons
- It is placed in Group 13 and Period 7 of the periodic table
3. How was nihonium discovered?
Nihonium was discovered by bombarding bismuth-209 with zinc-70 ions in a particle accelerator. The nuclear reaction used was:
209Bi + 70Zn → 278Nh + n
- The reaction was carried out at the RIKEN Nishina Center in Japan
- A neutron (n) is emitted during the fusion process
- The newly formed Nh isotope was identified by its decay chain
4. Is nihonium a metal, nonmetal, or metalloid?
Nihonium is predicted to be a post-transition metal. Because it is in Group 13 below thallium, it is expected to show metallic character.
- Likely to have a metallic appearance
- Expected to conduct electricity
- Chemical behavior influenced by relativistic effects
5. What is the electron configuration of nihonium?
The predicted ground-state electron configuration of nihonium (Nh) is [Rn] 5f14 6d10 7s2 7p1.
- [Rn] represents the radon core
- It has one electron in the 7p subshell
- This outer configuration is similar to other Group 13 elements
6. What are the common oxidation states of nihonium?
The most stable predicted oxidation states of nihonium are +1 and +3.
- +1 is expected to be more stable due to the inert pair effect
- +3 is typical for Group 13 elements
- The +5 state is highly unlikely and unstable
7. Why is nihonium radioactive?
Nihonium is radioactive because its nucleus is extremely heavy and unstable. With 113 protons, strong electrostatic repulsion exists between positively charged protons.
- All known isotopes undergo radioactive decay
- Common decay modes include alpha (α) decay
- Half-lives are typically in milliseconds to seconds
8. What are the uses of nihonium?
Nihonium currently has no commercial or industrial uses. It is produced only in extremely small quantities for scientific research.
- Used to study nuclear reactions and decay chains
- Helps scientists understand superheavy element stability
- Provides insight into periodic table trends
9. What period and group is nihonium in?
Nihonium is in Period 7 and Group 13 of the periodic table.
- Period 7 means it has seven occupied electron shells
- Group 13 includes boron (B), aluminum (Al), gallium (Ga), indium (In), and thallium (Tl)
- It is part of the p-block elements
10. How does nihonium compare to thallium?
Nihonium is expected to resemble thallium but show stronger relativistic effects and a more stable +1 oxidation state.
- Both are Group 13 elements
- Thallium commonly forms Tl+ and Tl3+
- Nihonium is predicted to favor Nh+ more strongly
- Nihonium is far more radioactive and short-lived
