Because the periodic table is organized by atomic number, not by atomic mass. The general trend in the periodic table is a higher atomic mass as you go up atomic number, but there are exceptions.
There isn't an element with the atomic number 202 because the known elements in the periodic table have atomic numbers up to 118, which is Oganesson. Any element with an atomic number higher than 118 would be highly unstable and would not exist naturally.
Alpha decay is the type of radioactive decay that causes the radionuclide to become an element with a higher atomic number. In alpha decay, the radionuclide emits an alpha particle, which consists of two protons and two neutrons, resulting in the formation of a new element with a higher atomic number.
Atomic number = Number of protons
The atomic number is the number of protons in an atom of an element.
Rhodium is placed in the same period as ruthenium but has a higher atomic number than it.
44 protons, element number = protons and electrons :)
This element is ruthenium (Ru), atomic number 44.
The number 44 is an even number and the square of 2. It is considered a number of stability and progress in numerology. In terms of science, the element ruthenium has the atomic number 44.
Ruthenium has 44 protons since the atomic number represents the number of protons in an atom. Since the mass number is 101, it implies the sum of protons and neutrons in the nucleus is 101, so the number of neutrons in this case would be 101 - 44 = 57.
The element Ruthenium (Ru) has Ruthenia in it and is named after it. Ruthenium has the atomic number 44 and is a transition metal. It has 44 electrons in 5 shells and is part of the Iron family.
The atomic number of ruthenium (Ru) is 44.The atomic weight of Ru is 101.07 grams per mole.See the Web Links to the left of this answer for a periodic table with more information about this element!
Ru is symbol of Ruthenium element having atomic number 44 and is placed in group 8 of the periodic table.
Ru is Ruthenium Name: Ruthenium Symbol: Ru Atomic Number: 44 Atomic Mass: 101.07 amu Melting Point: 2250.0 °C (2523.15 K, 4082.0 °F) Boiling Point: 3900.0 °C (4173.15 K, 7052.0 °F) Number of Protons/Electrons: 44 Number of Neutrons: 57 Classification: Transition Metal Crystal Structure: Hexagonal Density @ 293 K: 12.2 g/cm3 Color: silvery http://www.chemicalelements.com/elements/ru.html
Element number 44 is ruthenium (Ru)
The element name for Ruthenium is RU, which has an atomic number of 44. It is a transition metal in the platinum group with a grayish-white appearance. Ruthenium is used in various industrial applications, such as in electronics, jewelry, and catalysis.
The closest to 44 is Scandium, which has 21 protons and 24 neutrons, giving it a mass of 44.95591 amu.