In an Electrically Neutral Atom the Number of Protons in the Nucleus

question 23

Multiple Choice

In an electrically neutral atom the number of protons in the nucleus is equal to the number of

• A)electrons that surround the nucleus.
• B)neutrons in the nucleus.
• C)Choices A and B are both correct.
• D)Choices A and B are both incorrect.

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Definitions:

Scanning Objective

A lens system in microscopes used to achieve a high resolution image of a small area at high magnification.

Field Diameter

The overall size of the area visible through a microscope or telescope at a particular magnification.

Low-Powered Objective

An objective lens on a microscope with a relatively low magnification power, used for initial scanning and location of specimen details.

Scanning Objective

A low-power objective lens on a microscope used to scan the whole slide to find the specimen before using higher magnification.