Bohr Models Flashcards

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Questions and Answers

How many electrons max can the 1st energy level hold?

How many electrons max can the 2nd energy level hold?

How many electrons max can the 3rd energy level hold?

What is the element name for an oxygen atom?

Oxygen Signup and view all the answers

What is the chemical symbol for oxygen?

O Signup and view all the answers

What is the atomic mass of oxygen?

15.999 Signup and view all the answers

How many protons and electrons does an oxygen atom have?

8 protons, 8 electrons Signup and view all the answers

How many neutrons are in an oxygen atom?

8 Signup and view all the answers

Why is the number of neutrons in oxygen 8?

Because 15.999 - 8 is 7.999, rounded to 8 Signup and view all the answers

How do you find the number of neutrons?

mass number - atomic number Signup and view all the answers

Can you round the final answer when you calculate the number of neutrons?

False Signup and view all the answers

How many electrons are on the first ring of the oxygen Bohr model?

2 Signup and view all the answers

How many electrons are on the second ring of the oxygen Bohr model?

6 Signup and view all the answers

What is the element name for a sodium atom?

Sodium Signup and view all the answers

What is the chemical symbol for sodium?

Na Signup and view all the answers

What is the atomic mass of sodium?

22.990 Signup and view all the answers

How many protons and electrons does a sodium atom have?

11 protons, 11 electrons Signup and view all the answers

How many neutrons are in a sodium atom?

12 Signup and view all the answers

Why are there 12 neutrons in sodium?

Because 22.990 - 11 is 11.99 which rounds to 12 Signup and view all the answers

How many electrons are on the first ring of the sodium Bohr model?

2 Signup and view all the answers

How many electrons are on the second ring of the sodium Bohr model?

8 Signup and view all the answers

How many electrons are on the third ring of the sodium Bohr model?

1 Signup and view all the answers

Study Notes

Electron Configuration in Energy Levels

The 1st energy level can hold a maximum of 2 electrons.
The 2nd energy level can accommodate up to 8 electrons.
The 3rd energy level also has a maximum capacity of 8 electrons.

Oxygen Atom Characteristics

Element name is Oxygen with atomic number 8.
Chemical symbol for Oxygen is O.
Atomic mass of Oxygen is 15.999.
Contains 8 protons and 8 electrons, indicating it is electrically neutral.
The number of neutrons in Oxygen is 8, calculated as 15.999 (mass number) - 8 (atomic number), rounded to 8.

Determining Neutron Count

Neutron count can be found using the formula: mass number - atomic number.
Rounding the answer when calculating neutrons is permissible.

Oxygen Bohr Model

The Bohr model for Oxygen shows 2 electrons in the first ring and 6 electrons in the second ring, with no third ring required.

Sodium Atom Characteristics

Element name is Sodium with atomic number 11.
Chemical symbol for Sodium is Na.
Atomic mass of Sodium is 22.990.
Contains 11 protons and 11 electrons, reflecting electrical neutrality.
Number of neutrons in Sodium is 12, computed as 22.990 (mass number) - 11 (atomic number), rounded to 12.

Sodium Bohr Model

The Bohr model for Sodium includes three rings: 2 electrons in the 1st ring, 8 in the 2nd, and 1 in the 3rd, totaling 11 electrons.

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Description

Test your knowledge on the Bohr model of the atom with these flashcards. Learn about the capacity of different energy levels and familiarize yourself with fundamental elements like oxygen through engaging questions. Perfect for students studying atomic structure!