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Chapter 2: Problem 3

In any given neutral atom, how many protons are there compared with the number of electrons?

Short Answer

Expert verified
In a neutral atom, the number of protons equals the number of electrons.

Step by step solution

01

Understanding Neutral Atoms

A neutral atom has no overall charge, which means that the number of protons (positively charged particles) must equal the number of electrons (negatively charged particles) to balance the charges.
02

Identifying Protons and Electrons

In a neutral atom, the atomic number indicates the number of protons in the nucleus. Because this atom is neutral, the atomic number also tells us the number of electrons surrounding the nucleus.
03

Conclusion

For any given neutral atom, the number of protons is equal to the number of electrons.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Protons in a Neutral Atom
Protons are tiny particles found in the nucleus of an atom. They carry a positive charge, symbolized as +1. The number of protons in an atom determines the type of element it is. For example, hydrogen has just one proton, while carbon has six. In a neutral atom, the number of protons equals the number of electrons. This balance is crucial because protons are positively charged, and electrons are negatively charged, canceling each other out. As a result, the overall charge of a neutral atom is zero. Understanding the role of protons helps us grasp the foundation of chemical elements and their properties.
Electrons and Their Role
Electrons are particles that orbit the nucleus of an atom. They carry a negative charge, symbolized as -1. In a neutral atom, the number of electrons is the same as the number of protons. This equilibrium ensures that the charges are balanced, resulting in no net charge on the atom. Electrons play a critical role in forming chemical bonds, allowing atoms to connect and interact in various chemical reactions. While they are much smaller than protons, electrons are essential for the chemical behavior of an atom. Knowing how they work helps in understanding concepts like electrical conductivity and chemical reactivity.
Atomic Number Significance
The atomic number is vital in identifying chemical elements. It tells us how many protons are in the nucleus of an atom. Since a neutral atom has the same number of protons and electrons, the atomic number also reveals the number of electrons. For example, the atomic number of oxygen is 8, which means an oxygen atom has 8 protons and 8 electrons. The atomic number gives each element its unique identity and places it in the correct position on the periodic table. Understanding the atomic number helps in predicting element properties and behavior during chemical reactions. It serves as a fundamental metric in the study of chemistry.

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Most popular questions from this chapter

Draw diagrams of each nanoscale situation given in parts (a) and (b). Represent atoms or monoatomic ions as circles; represent molecules or polyatomic ions by overlapping circles for the atoms that make up the molecule or ion; and distinguish among different kinds of atoms by labeling or shading the circles. In each case draw representations of at least five nanoscale particles. Your diagrams can be two-dimensional. (a) A crystal of solid sodium chloride (b) The sodium chloride from part (a) after it has been melted

Correctly name each of these ionic compounds. (a) \(\mathrm{K}_{2} \mathrm{~S}\) (b) \(\mathrm{NiSO}_{4}\) (c) \(\left(\mathrm{NH}_{4}\right)_{3} \mathrm{PO}_{4}\) (d) \(\mathrm{Al}(\mathrm{OH})_{3}\) (e) \(\mathrm{Co}_{2}\left(\mathrm{SO}_{4}\right)_{3}\)

If you divide Avogadro's number of pennies among the nearly 300 million people in the United States, and if each person could count one penny each second every day of the year for eight hours per day, calculate how long it would take to count the pennies.

It's final exam time and a student drinks a 1.93 -oz bottle of 5-Hour Energy \(\mathbb{B}\) to stay awake. The drink contains, among other substances, \(212 \mathrm{mg}\) caffeine, \(\mathrm{C}_{8} \mathrm{H}_{10} \mathrm{~N}_{4} \mathrm{O}_{2}\) (a) Calculate the mass percent nitrogen in caffeine. (b) Calculate the number of caffeine molecules that the student ingested. (c) Calculate the number of carbon atoms in this mass of caffeine. (d) An 8-oz cup of regular coffee contains approximately \(100 \mathrm{mg}\) caffeine. Calculate how many times greater the caffeine concentration (mg/oz) is in the 5 -Hour Energy \(^{\oplus}\) drink than in the regular coffee.

In a noncyclic alkane other than methane, what is the maximum number of hydrogen atoms that can be bonded to one carbon atom?
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