The smallest unit that retains the properties of an element is a(n) _____. atom molecule proton compound neutron

Chemistry

1 answer:

Aleks [24]3 years ago

8 0

The answer to your question is ATOM.

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_____ might be able to detect tumors based on its use of X-rays and ability to produce cross-sectional images of the brain.

MatroZZZ [7]

Answer: CAT (computerized axial tomography) scan

Explanation:

Computerized Axial Tomography (CAT) scan is an X-ray examination in which a computer generates images showing cross-section views of a patient's internal parts (brain, blood vessels and etc.)

CAT scan can identify normality and detect abnormalities (such as tumor and degenerated cells) in the internal organs and structures and hence, this information are used to guide other medical processes.

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3 years ago

1) on combustion, 1 mole of an alkane gives 2 moles of carbon dioxide and 3 moles of water. Suggest the molecular formula of thi

Crazy boy [7]

1 mole of an alkane gives 2 moles is correct answer

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3 years ago

A metal foil has a threshold frequency of 5.45 \times 10^{14} \text{ } \text{Hz}5.45Ã—10 14 Hz. Which of the colors of visible l

nalin [4]

Answer:

Green, Blue, Indigo, Violet

Explanation:

According to Einstein's equation of photoelectric effect, the kinetic energy of emitted photoelectron is the difference between the energy of the incident photon and the work function of the metal. The work function of the metal referee to the minimum energy that must be supplied in order to eject an electron from a metal surface. The energy of the incident photon must exceed the work function of the metal.

When we look at the electromagnetic spectrum, only the selected colours have frequency above the threshold frequency as shown by the image attached below.