Podcast
Questions and Answers
How do isotopes of an element differ from each other?
How do isotopes of an element differ from each other?
- They have different numbers of neutrons. (correct)
- They have different numbers of protons.
- They have the same mass number.
- They have the same number of neutrons.
What is the charge of a neutron?
What is the charge of a neutron?
- 1/1840
- 0 (correct)
- +1
- -1
If an atom has a mass number of 12 and has 6 protons, how many neutrons does it contain?
If an atom has a mass number of 12 and has 6 protons, how many neutrons does it contain?
- 8 (correct)
- 12
- 6
- 18
What is the maximum number of electrons that can occupy the first shell of an atom?
What is the maximum number of electrons that can occupy the first shell of an atom?
In the context of atomic structure, how is the group of an element defined?
In the context of atomic structure, how is the group of an element defined?
Which of the following statements accurately describes the relationship between particle movement and the state of matter?
Which of the following statements accurately describes the relationship between particle movement and the state of matter?
Which of the following statements accurately defines diffusion?
Which of the following statements accurately defines diffusion?
Which of the following best describes why heat causes a solid to transition into a liquid?
Which of the following best describes why heat causes a solid to transition into a liquid?
Which subatomic particle is responsible for the positive charge of the nucleus?
Which subatomic particle is responsible for the positive charge of the nucleus?
Which of the following statements accurately describes the relationship between the movement of particles and the state of matter?
Which of the following statements accurately describes the relationship between the movement of particles and the state of matter?
Flashcards
Proton Charge
Proton Charge
A proton has a positive charge of +1.
Isotopes
Isotopes
Atoms with the same protons but different neutrons.
Finding Neutrons
Finding Neutrons
Neutrons = Mass number - Protons.
Electron Shells Formula
Electron Shells Formula
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Period and Group in Elements
Period and Group in Elements
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Properties of Solids
Properties of Solids
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Properties of Liquids
Properties of Liquids
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Properties of Gases
Properties of Gases
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Diffusion
Diffusion
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Atomic Structure
Atomic Structure
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Study Notes
Atomic Structure
- Proton charge = +1
- Neutron charge = 0
- Electron charge = -1
- Proton mass = 1
- Neutron mass = 1
- Electron mass = 1/1840
Isotopes
- Isotopes are particles with the same amount of proton but different number of neutrons
Calculating Neutrons
- To find neutron number, subtract the mass number from the mass number.
Electron Configuration
- The formula for the number of electrons in each shell is 2(n2)
- where n is the number of the shell
- The period is the number of valence electron shell while the group is the number of electron left in the last shell.
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