Table of Contents
- 1 What element is number 71?
- 2 What is the electronic configuration of 71?
- 3 What is element 71 used for?
- 4 How much is lutetium worth?
- 5 Is calcium a metal?
- 6 What is gold electron configuration?
- 7 Why is lutetium in the F block?
- 8 What is the name and symbol of an element?
- 9 What is the atomic number of each element?
What element is number 71?
Lutetium
Lutetium is a chemical element with symbol Lu and atomic number 71. Classified as a lanthanide, Lutetium is a solid at room temperature.
What is the electronic configuration of 71?
1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s and so on. Electronic configuration of Element X with atomic number 71 is \[\left[ {Xe} \right]4{f^{14}}6{s^2}5{d^1}\]. Therefore, the last electron will enter in a 5d orbital. Hence, the correct answer to this question is option D.
What is element 71 used for?
One of its few commercial uses is as a catalyst for cracking hydrocarbons in oil refineries. Lutetium has no known biological role. It has low toxicity. In common with many other lanthanides, the main source of lutetium is the mineral monazite.
What element has a number of 7?
Nitrogen is element number 7 on the periodic table.
How many electrons the element with 71 protons has?
Lutetium atoms have 71 electrons and the electronic shell structure is [2, 8, 18, 32, 9, 2] with Atomic Term Symbol (Quantum Numbers) 2D3/2….Lutetium Atomic and Orbital Properties.
| Atomic Number | 71 |
|---|---|
| Number of Electrons (with no charge) | 71 |
| Number of Protons | 71 |
| Mass Number | 175 |
| Number of Neutrons | 104 |
How much is lutetium worth?
Lutetium is worth approximately $10,000 per kilogram and for its high price it has found few commercial uses, although it has applications in the petroleum industry for petroleum cracking and has experimental uses in certain cancer treatments.
Is calcium a metal?
Calcium is a silvery-white, soft metal that tarnishes rapidly in air and reacts with water. Calcium metal is used as a reducing agent in preparing other metals such as thorium and uranium. It is also used as an alloying agent for aluminium, beryllium, copper, lead and magnesium alloys.
What is gold electron configuration?
[Xe] 4f14 5d10 6s1
Gold/Electron configuration
Where do you find lutetium?
monazite
Lutetium is never found in nature as the free element. Lutetium is found in the ores monazite sand [(Ce, La, etc.) PO4] and bastn°site [(Ce, La, etc.)(…Abundances of lutetium in various environments.
| Location | ppb by weight | ppb by atoms |
|---|---|---|
| Stream | 0.008 | 0.00005 |
| Human | (no data) | (no data) |
What is the atomic number for salt?
11
sodium
| atomic number | 11 |
|---|---|
| melting point | 97.81 °C (208 °F) |
| boiling point | 882.9 °C (1,621 °F) |
| specific gravity | 0.971 (20 °C) |
| oxidation states | +1, −1 (rare) |
Why is lutetium in the F block?
Lutetium is part of the lanthanide series, notwithstanding its electron configuration, because its properties and those of its compounds are similar to those of the other lanthanide elements. Lawrencium is assigned to the actinides for basically the same reason.
What is the name and symbol of an element?
The names and element symbols are provided. Each element has a one- or two-letter symbol, which is an abbreviated form of its present or former name. The element number is its atomic number, which is the number of protons in each of its atoms.
What is the atomic number of each element?
Each element has a one- or two-letter symbol, which is an abbreviated form of its present or former name. The element number is its atomic number, which is the number of protons in each of its atoms. H – Hydrogen. He – Helium. Li – Lithium.
Which is the element with the symbol Na?
Gas. Primordial. Noble gas. 11. Sodium. Na. 1. 3. s.
What are the names of the elements on the periodic table?
The Elements, sorted by Atomic Number Atomic Number Symbol Name Atomic Mass (amu, g/mol) 27 Co Cobalt 58.9332 28 Ni Nickel 58.70 29 Cu Copper 63.546 30 Zn Zinc 65.38