Consider an atom of 10 B. (c) What is the symbol of the atom obtained by adding one neutron to 10 B?

Hey everyone in this example, we need to write the symbol for the atom obtained when one neutron is added to gallium. So we're adding one neutron according to the prompt. We're given our isotope for gallium 29 Our isotope symbol. We should recognize that 29 represents our mass number or atomic mass. And recall that we calculate this by taking our number of protons and adding it to our number of neutrons. And so accordingly we would take our given mass number in the symbol 29 and add one neutron. And so this will now give us our new mass number equal to a value of 30. And so we would say that therefore now that we have this new mass number, we would change our symbols so that we have the isotope gallium 30 written and this would be our final answer to complete this example. So I hope that everything I reviewed was clear. If you have any questions, leave them down below and I'll see everyone in the next practice video.

Ch.2 - Atoms, Molecules, and Ions

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Brown 15th Edition

Ch.2 - Atoms, Molecules, and Ions

Problem 23c

Chapter 2, Problem 23c

Consider an atom of ¹⁰B. (c) What is the symbol of the atom obtained by adding one neutron to ¹⁰B?

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Step 1: Understand the atomic structure. The atomic number (Z) of an atom is the number of protons in its nucleus, and the mass number (A) is the sum of the number of protons and neutrons. The symbol for an atom is usually written as ^A_ZX, where X is the chemical symbol, Z is the atomic number, and A is the mass number.

Step 2: Identify the atomic number and mass number of the given atom. For ¹⁰B, the atomic number (Z) is 5 (since Boron's atomic number is 5) and the mass number (A) is 10.

Step 3: Understand the effect of adding a neutron. Adding a neutron to an atom increases its mass number by 1, but does not change its atomic number (since the number of protons remains the same).

Step 4: Calculate the new mass number. Since we are adding one neutron to ¹⁰B, the new mass number will be 10 + 1 = 11.

Step 5: Write the symbol for the new atom. Since the atomic number remains the same (5 for Boron), and the mass number is now 11, the symbol for the new atom is ¹¹B.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Atomic Structure

Atoms consist of protons, neutrons, and electrons. The number of protons defines the element, while the total number of protons and neutrons gives the atomic mass. In the case of boron-10 (10B), it has 5 protons and 5 neutrons, making it a specific isotope of boron.

Isotopes

Isotopes are variants of a chemical element that have the same number of protons but different numbers of neutrons. This difference in neutrons results in different atomic masses. For example, adding one neutron to 10B creates 11B, which is another isotope of boron.

Nuclear Notation

Nuclear notation is a way to represent isotopes using the element's symbol, the atomic number (number of protons), and the mass number (total number of protons and neutrons). For boron-10, the notation is 10B, and after adding a neutron, the notation for the new isotope becomes 11B.

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Consider an atom of ¹⁰B. (a) How many protons, neutrons, and electrons does this atom contain?

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Consider an atom of ¹⁰B. (b) What is the symbol of the atom obtained by adding one proton to ¹⁰B?

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Consider an atom of ⁶³Cu. b. What is the symbol of the ion obtained by removing two electrons from ⁶³Cu?

Consider an atom of 10B. (c) What is the symbol of the atom obtained by adding one neutron to 10B?

Verified video answer for a similar problem:

Key Concepts

Atomic Structure

Isotopes

Nuclear Notation

Consider an atom of ¹⁰B. (c) What is the symbol of the atom obtained by adding one neutron to ¹⁰B?