Answer:
Atomic models are important because, they help us visualize the interior of atoms and molecules, and thereby predicting properties of matter.
Explanation:
We study the various atomic models in our course of study because, it is important for us to know, how did people come to the present concept of an atom. How did physics evolve from classical to quantum physics.
All these are important for us to know and thus, knowledge about various atomic models, their discoveries and drawbacks and finally improvements based on scientific evidence present at that time is important for us to understand the underlying theory very well.
Answer:
ACTUALLY the correct answer is
helium
Answer:
3.0x10¹⁹ atoms
Explanation:
First we <u>convert 10 mg of mercury into grams</u>:
Then we <u>convert 0.01 g of mercury into moles</u>, using its <em>molar mass</em>:
- 0.01 g ÷ 200.59 g/mol = 4.99x10⁻⁵ mol
Then we <u>convert moles into number of atoms</u>, using <em>Avogadro's number</em>:
- 4.99x10⁻⁵ mol * 6.023x10²³ atoms/mol = 3.0x10¹⁹ atoms
Answer: B is a gas because its volume is less than the volume of the containers.
Explanation: hope this help bye
Yellow because Pangea all the continents were together
