Determine the Number of Atoms in a Piece of Ultrapure

question 37

Multiple Choice

Determine the number of atoms in a piece of ultrapure silicon that has a mass of 15.0 grams.

• A)1.13 × 10²⁴ atoms
• B)1.69 × 10²⁵ atoms
• C)2.54 × 10²⁰ atoms
• D)3.21 × 10²³ atoms
• E)9.03 × 10²⁴ atoms

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Definitions:

Ex-Dividend Date

The specific date on which a stock is set to go "ex-dividend," meaning that shareholders of record as of that date will be entitled to receive the declared dividend.

Declaration Date

The specific date on which a company announces its next dividend payment, detailing the amount and when it will be paid.

Date of Record

The specified date when a company determines the owners of its stock to be eligible for a forthcoming dividend or corporate action.

Stock Split

A corporate action that increases the number of shares in a company by issuing more shares to current shareholders, thereby reducing the price per share, without changing the shareholders' equity.