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The element with 58 electrons is Cerium (Ce). It has the atomic number 58. Cerium is a 'Rare Earth' metal in Period 6 (Lanthanide group) of the Periodic Table.
With mass number 140 this Ce is the first and stable isotope (142 is weakly unstable, 141 is a radioactive artificial isotope)
[It has 58 electrons in 6 shells with 2 electrons in the outer shell (4f-block), so it is NOT a 'Transition' group metal of the 5d-block starting with 72Hf]
The element with an Atomic Mass of 58.7 is cobalt (Co), which has an atomic number of 27. It is a hard, lustrous transition metal that is commonly used in the production of alloys and batteries.
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What is the atomic mass for magnesiam?
The atomic mass of magnesium is approximately 24.305 amu (atomic mass units).
Which element has a greater atomic mass A or B?
Element A has a greater atomic mass than element B if the atomic mass value of A is higher. The atomic mass represents the average mass of an element’s isotopes based on their abundance in nature.
Which element has an atomic mass of 16.00?
the element that has an atomic mass of 16.00 is sulfer.
What is the atomic mass of the element flourin?
Fluorine is a meta element. Atomic mass of it is 19.
What is the atomic mass of the element gold?
gold is a meta element. Atomic mass of it is 197.
What is the atomic mass for magnesiam?
The atomic mass of magnesium is approximately 24.305 amu (atomic mass units).
Which element has the atomic mass of 126.9045?
The element is Iodine (I). It has an atomic mass of about 126.9.
Which element has a greater atomic mass A or B?
Element A has a greater atomic mass than element B if the atomic mass value of A is higher. The atomic mass represents the average mass of an element’s isotopes based on their abundance in nature.
Which element has an atomic mass of 16.00?
the element that has an atomic mass of 16.00 is sulfer.
What is the atomic mass of the element flourin?
Fluorine is a meta element. Atomic mass of it is 19.
What is the atomic mass of this element Au?
Gold is a meta element. Atomic mass of it is 197.
What is the atomic mass of the element iron?
Iron is a meta element. Atomic mass of it is 56.
What is the atomic mass of the element gold?
gold is a meta element. Atomic mass of it is 197.
What element has an atomic mass of 131?
The element with atomic mass 131 is Iodine (I)
What element has 89 atomic mass?
The element with atomic number 89 is actinium, not atomic mass. The atomic mass of actinium is approximately 227 g/mol.
What element has the atomic mass of 9.012?
The element with an atomic mass of 9.012 is Beryllium, which has the atomic number 4.
What does the atomical number represent?
The Atomic Mass is the mass (weight) of the element measured in atomic mass units (AMU)
