The most abundant isotope of strontium is 38^88 Sr. (4.4) a. How many protons, neutrons, and el

step 1 so we have given here strontium and strontium has atomic number 38 mass number is 88 always reme

The most abundant isotope of strontium is 38^88 Sr. (4.4)...

The most abundant isotope of strontium is ${ }_{38}^{88} \mathrm{Sr}$. (4.4) a. How many protons, neutrons, and electrons are in ${ }_{38}^{88} \mathrm{Sr} ?$ b. What is the atomic symbol of another isotope of strontium with 51 neutrons? c. What is the name and symbol of an atom with the same mass number as in part $\mathbf{b}$ and 50 neutrons?

The most abundant isotope of strontium is ${ }_{38}^{88} \mathrm{Sr}$. (4.4)
a. How many protons, neutrons, and electrons are in ${ }_{38}^{88} \mathrm{Sr} ?$
b. What is the atomic symbol of another isotope of strontium with 51 neutrons?
c. What is the name and symbol of an atom with the same mass number as in part $\mathbf{b}$ and 50 neutrons?

Key Concepts

Atomic Number

The atomic number of an element represents the number of protons in the nucleus of an atom. It defines the identity of the element and, in a neutral atom, is equal to the number of electrons surrounding the nucleus. The atomic number is crucial for determining the chemical properties of an element and its placement in the periodic table.

Mass Number

The mass number is the total count of protons and neutrons in an atomic nucleus. It is a measure of the mass of the nucleus relative to the hydrogen atom and is used to distinguish between different isotopes of the same element. Calculating the number of neutrons involves subtracting the atomic number from the mass number.

Isotopes

Isotopes are variants of a given chemical element that contain the same number of protons but a different number of neutrons in the nucleus. This difference in neutron number results in different mass numbers, although the chemical behavior of isotopes of the same element is largely similar. Understanding isotopes is essential for applications in nuclear chemistry, medicine, and environmental science.

Nuclear Notation

Nuclear notation is a standardized method of writing the composition of an atom, where the atomic number is written as a subscript and the mass number as a superscript next to the element's symbol. This notation provides immediate information about the number of protons, neutrons, and overall mass of the atom, making it a fundamental tool in nuclear chemistry and physics.

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