One isotope of a metallic element has mass number 80 and has...

Name: Problem 110, Chapter 2: General Chemistry
Uploaded: 2021-08-29T06:19:43-08:00
Duration: 1 min 1 s
Channel: Ronald Prasad
Description: One isotope of a metallic element has mass number 80 and has 55 neutrons in the nucleus. An atomic ion has 23 electrons. Write the symbol for this ion (give the symbol for the nucleus and give the ionic charge as a right superscript).

One isotope of a metallic element has mass number 80 and has 55 neutrons in the nucleus. An atomic ion has 23 electrons. Write the symbol for this ion (give the symbol for the nucleus and give the ionic charge as a right superscript).

Key Concepts

Isotope

An isotope is a variant of a chemical element that has the same number of protons but a different number of neutrons in the nucleus. This means while the chemical properties remain the same, the mass number changes based on the total number of protons and neutrons present.

Mass Number

The mass number is the sum of the number of protons and neutrons in an atom’s nucleus. It is essential for identifying specific isotopes and plays a key role in determining the atomic mass of an element.

Atomic Number

The atomic number is the number of protons in an atom’s nucleus and uniquely identifies the element. In a neutral atom, it also equals the number of electrons, which influences the element’s chemical behavior.

Ionic Charge

The ionic charge results from the imbalance between the number of protons (positively charged) and electrons (negatively charged) in an atom or ion. When there are fewer electrons than protons, as in this case, the ion acquires a positive charge.

Chemical Symbol Notation

Chemical symbol notation for isotopes and ions incorporates the element’s symbol with its mass number and charge. The mass number (total protons and neutrons) is usually given as a superscript on the left, while the ionic charge is shown as a superscript on the right of the symbol, providing a compact summary of the nuclear and electronic composition.

Transcript

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