What element has an atomic mass of 40?
Zirconium
The elements of the periodic table sorted by atomic mass
| Atomic Mass | Name chemical element | number |
|---|---|---|
| 91.224 | Zirconium | 40 |
| 92.9064 | Niobium | 41 |
| 95.94 | Molybdenum | 42 |
| 98 | Technetium | 43 |
What are the first 40 element?
First 40 Chemical Elements & Their Symbols
| A | B |
|---|---|
| Boron | B |
| Carbon | C |
| Nitrogen | N |
| Oxygen | O |
What are the 40 elements?
The elements of the periodic table sorted by atomic number
| Atomic number | Name chemical element | Symbol |
|---|---|---|
| 37 | Rubidium | Rb |
| 38 | Strontium | Sr |
| 39 | Yttrium | Y |
| 40 | Zirconium | Zr |
What is the atomic mass of 1 to 20 elements?
Atomic Number of Elements from 1 to 30
| Atomic Number | Element | Atomic Mass |
|---|---|---|
| 18 | Argon | 39.948 |
| 19 | Potassium | 39.098 |
| 20 | Calcium | 40.078 |
| 21 | Scandium | 44.956 |
What is the highest atomic number?
Oganesson
Oganesson has the highest atomic number and highest atomic mass of all known elements. The radioactive oganesson atom is very unstable, and since 2005, only five (possibly six) atoms of the isotope oganesson-294 have been detected.
What are the 30 elements?
The Elements, sorted by Atomic Number
| Atomic Number | Symbol | Name |
|---|---|---|
| 29 | Cu | Copper |
| 30 | Zn | Zinc |
| 31 | Ga | Gallium |
| 32 | Ge | Germanium |
What are the valence numbers of 1 to 30 elements?
Valence electrons of elements from 1 to 30
- Hydrogen (H) Atomic Number — 1. Valency — 1.
- Helium (He) Atomic Number –2.
- Lithium (Le) Atomic Number — 3.
- Beryllium (Be) Atomic Number — 4.
- Boron (B) Atomic Number– 5.
- Carbon(C) Atomic Number: 6.
- Nitrogen (N) Atomic Number –7.
- Oxygen (O) Atomic Number –8.
What is the mass of the first 30 elements?
Atomic Mass of First 30 Elements ATOMIC NUMBER ELEMENT ATOMIC MASS 18 Argon 39.948 19 Potassium 39.098 20 Calcium 40.078 21 Scandium 44.956
Which is the average mass of an element?
The atomic mass of an element is the average mass of the atoms of an element measured in atomic mass unit (amu, also known as daltons, D).
Which is the correct answer for elements 1-40?
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Which is the element with the highest atomic mass?
List of Chemical Elements Atomic Number Atomic Mass Chemical Element Name Symbol Discovery (Year) 1 1.0079 Hydrogen H 1776 2 4.0026 Helium He 1895 3 6.941 Lithium Li 1817 4 9.0122 Beryllium Be 1797