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Xx Unit 2 Sem Ex Review

Xx Unit 2 Sem Ex Review

Assessment

Flashcard

Chemistry, Science

8th - 12th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

Which element is located in period 4 and group 5?

Back

Vanadium (V)

2.

FLASHCARD QUESTION

Front

What is the speed of light?

Back

3.0x10^8 m/s

3.

FLASHCARD QUESTION

Front

Which of the following elements is most likely a poor conductor of electricity?

Back

Phosphorus (P)

4.

FLASHCARD QUESTION

Front

What is the energy of a photon with wavelength of 688 nm?

Back

2.90 x 10^-19 J

5.

FLASHCARD QUESTION

Front

What is the energy of a photon with frequency 5.95 x 10^14 Hz?

Back

3.94 x 10^-19 J

6.

FLASHCARD QUESTION

Front

Define 'photon'.

Back

A photon is a quantum of electromagnetic radiation, which carries energy proportional to its frequency.

7.

FLASHCARD QUESTION

Front

What is the formula to calculate the energy of a photon?

Back

E = h * f, where E is energy, h is Planck's constant (6.626 x 10^-34 Js), and f is frequency.

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