C) Weathering can be chemical or physical; deposition
is only chemical
The answer is A
In approximately 5 billion years, the sun will begin the helium-burning process, turning into a red giant star. When it expands, its outer layers will consume Mercury and Venus, and reach Earth.
Answer:
1. The core electrons are 10
2. The valence electrons are 8
Explaination:
Core electrons are electrons located in the inner shells of and atom.
Valence electrons are electrons located on the outermost shell of an atom
From the question given above, we obtained:
Ar (18) => [Ne] 3s²3p⁶
Recall
Ne (10) => 1s² 2s²2p⁶
Therefore,
Ar (18) => [1s² 2s²2p⁶] 3s²3p⁶
From the above illustration,
Inner shell (core shell) => 1s² 2s²2p⁶
Outermost shell (valence shell) => 3s²3p⁶
1. Determination of the core electrons
Inner shell (core shell) => 1s² 2s²2p⁶
Core electrons = 2 + 2 + 6
Core electrons = 10
2. Determination of the valence electrons
Outermost shell (valence shell) => 3s²3p⁶
Valence electron = 2 + 6
Valence electron = 8
Answer:
Nhiệt dung riêng của đồng là
380
J
/
k
g
.
K
Explanation:
Can you give some choices?
I'll tell you a few that are monatomic, the Noble gases:
Helium
Neon
Argon
Krypton
Xenon
