The Nucleus: Crash Course Chemistry #1

Created from Youtube video: https://www.youtube.com/watch?v=FSyAehMdpyIvideo

Concepts covered:atomic number, protons, neutrons, electrons, isotopes

The video introduces the fundamental concepts of chemistry, emphasizing the importance of understanding atoms, which are composed of protons, neutrons, and electrons. It explains how the atomic number defines an element, the role of neutrons in stabilizing the nucleus, and the significance of isotopes in determining atomic mass.

chapter

Concepts covered:atomic number, protons, neutrons, electrons, isotopes

Question 1

Einstein mathematically proved the existence of atoms in 1905.

Question 2

The atomic number defines an element's identity.

Question 3

The atomic number of an element changes with neutrons.

Question 4

Who mathematically proved the existence of atoms?

Question 5

What determines an element's identity?

Question 6

What information does the chemical symbol notation provide?

Question 7

Atoms are composed of protons, neutrons, and _____.

Question 8

The number of protons in an element is its _____.

Question 9

Relative atomic mass is the number of protons plus neutrons _____ across all silver.

Question 10

CASE STUDY: You are a chemist working on a new drug. You need to understand the atomic structure of the compounds you are using.

All of the following are components of an atom except...

Question 11

CASE STUDY: During a chemical reaction, an atom with 79 protons changes its electron configuration.

All of the following are true except:

Question 12

CASE STUDY: You are explaining to a peer why the atomic number of silver remains constant despite different isotopes.

All of the following are reasons except...

Question 13

CASE STUDY: You are a scientist explaining the importance of atomic theory in modern science.

Select two correct impacts of atomic theory.

Question 14

CASE STUDY: A chemist is examining a sample and finds it contains atoms with 47 protons and 61 neutrons.

Select two correct statements about the sample:

Question 15

CASE STUDY: You are analyzing a sample containing Silver-107 and Silver-109. You need to explain the concept of mass number.

Select three correct statements about mass number.

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