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# Which statements about subatomic particles are true?a. If ISBN: 9780321809247 1

## Solution for problem 47E Chapter 2

Chemistry: A Molecular Approach | 3rd Edition

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Problem 47E

Which statements about subatomic particles are true?

a.        If an atom has an equal number of protons and electrons, it will be charge-neutral.

b.        Electrons are attracted to protons.

c.        Electrons are much lighter than neutrons.

d.        Protons have twice the mass of neutrons.

Step-by-Step Solution:
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Solution : Here, we have to write the molecular and empirical formulas for the compounds. So first let’s see what is an empirical formula and molecular formula and let’s write the formulas. In chemistry, the empirical formula of a chemical compound is the simplest positive integer ratio of atoms present in a compound. The smallest whole number ratios of the subscripts of molecular formula are derived by dividing the subscripts by largest common factor. For example: the e mpiri cal formula of disulfur dioxide is S 2O2. the e mpir ical formula of ethane(C H ) will be CH . 2 6 3 Empirical formula gives the relative num ber of atoms of each kind present in that compound. For example: Consider, Ethane (C H ) 2 6 Relative number of atoms in simplest form will be CH and it is the empirical formula of 3 ethane. Molecular formula is a chemical formula that gives the total number of atoms of each element in each molecule of a substance. These definite numbers of atoms present in a molecule are rep resented as s ubscripts in the molecular formula. For Example : C H 2 t6 molecular formula of ethane. 1 molecule of ethane contains 2 atoms of Carbon a nd 6 hydrogen (H) atoms. Now,let’s find the molecular and empirical formulas for the compounds given : (1) Molecular formula : In the above compound,...

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##### ISBN: 9780321809247

The answer to “Which statements about subatomic particles are true?a. If an atom has an equal number of protons and electrons, it will be charge-neutral.b. Electrons are attracted to protons.c. Electrons are much lighter than neutrons.d. Protons have twice the mass of neutrons.” is broken down into a number of easy to follow steps, and 40 words. The full step-by-step solution to problem: 47E from chapter: 2 was answered by , our top Chemistry solution expert on 02/22/17, 04:35PM. This textbook survival guide was created for the textbook: Chemistry: A Molecular Approach, edition: 3. Since the solution to 47E from 2 chapter was answered, more than 385 students have viewed the full step-by-step answer. This full solution covers the following key subjects: compounds, Molecular, formulas, ionic, ions. This expansive textbook survival guide covers 82 chapters, and 9454 solutions. Chemistry: A Molecular Approach was written by and is associated to the ISBN: 9780321809247.

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