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The element with atomic number 45 is Rhodium (Rh). Rhodium is a transition metal in Group 9, Period 5 of the Periodic Table. Rhodium has 45 electrons in 5 electron shells with 1 electron in the outer shell.
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What element has a mass number of 45?
The element with a mass number of 45 is scandium. It has an atomic number of 21, which means it has 21 protons in its nucleus.
Which element is 45 on the periodic table of chemical elements?
Element 45 on the periodic table is rhodium, which has the symbol Rh. Rhodium is a rare transition metal that is commonly used in catalytic converters, jewelry, and electroplating.
An atom with a mass number of 45 has three more neutrons than protons What is the atomic number of this atom?
The atomic number is 21: The mass number is the sum of protons and neutrons, while the atomic number is the number of protons, designated n. From the statement of the problem, n+n+3 = 45, or 2n = 42, or n=21.
What element has a mass number of 103 and electrons of 45?
Rhodium (symbol Rh, at. no. 45, at. wt. 103)
How many neutrons are in selenium-76?
A simply formula is the atomic mass of selenium (rounded to the whole number) - atomic number = neutrons. So Selenium 76 has 45 neutrons.
If an element has an atomic number of 45 and an atomic mass of 92 the number of protons it has is?
The atomic number always gives the number of protons or electrons. The neutrons are obtained by subtracting the number of protons from the atomic mass. In this example, since 45 is the atomic number, this element has 45 protons. since the mass is 92, the number of neutrons is 92-45= 47. However, this is not really true because the element with 45 as atomic number is rhodium and it has a mass of 103 u and hence a total of 58 neutrons.
How many protons has an element with atomic number 45?
45 protons
What is the average atomic mass of scandium?
Scandium is a meta element. Atomic mass of it is 45. Atomic number of it is 21.
What is metallic element 45?
Rhodium
What element has a mass number of 45?
The element with a mass number of 45 is scandium. It has an atomic number of 21, which means it has 21 protons in its nucleus.
What two element's atomic numbers multiply to be 45?
Fluorine (whose atomic number is 9) and Boron (whose atomic number is 5).
What element is Rh?
Rh is rhodium. (Atomic number: 45).
What is the atomic number of rhodium?
The atomic number of rhodium (Rh) is 45.The atomic weight of Rh is 102.91 grams per mole.See the Web Links to the left of this answer for a periodic table with more information about this element!
Which element has an atomic number of 45?
The element with atomic number 45 is Rhodium (Rh). Rhodium is a transition metal in Group 9, Period 5 of the Periodic Table. Rhodium has 45 electrons in 5 electron shells with 1 electron in the outer shell.
If Bromine has an atomic number of 35 and has 45 neutrons what is its mass number?
The mass number of an element is the sum of its protons and neutrons. Since Bromine has 35 protons (atomic number) and 45 neutrons, its mass number would be 35 + 45 = 80.
An unknown atom has 26 neutrons and an approximate atomic mass of 48 What is the name of this element?
That has an atomic mass of (45 + 56), or 101.
How many neutrons does the element Sc have?
The element Scandium (Sc) has 21 protons in its nucleus, which can be determined using its atomic number. To find the number of neutrons, we can subtract the atomic number from the atomic mass: Scandium has an atomic mass of approximately 45. This gives us 45 - 21 = 24 neutrons in a Scandium atom.
