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nata0808 [166]
3 years ago
11

What is a negatively charged subatomic particle?

Chemistry
1 answer:
zvonat [6]3 years ago
5 0
I think its electrons
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Sodium has______ Valence electrons and bismuth has ________ electrons
Triss [41]

Answer:

Sodium has 1 valence electron and bismuth has 83 electrons (5 valence electrons)

Explanation:

5 0
3 years ago
If a mineral has a metallic shine and scratches, which of its properties are being measured? Choose the two correct answers.
zzz [600]
If a mineral has a metallic shine and scratches, which of its properties are being measured?
Choose the two correct answers.

magnetism

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8 0
3 years ago
A qué periodo y grupo pertenecen los átomos de un elemento cuyos átomos presentan 12 electrones caracterizados con ml = 0. Dar c
Klio2033 [76]

Answer:

Periodo: 3.

Grupo: IIA.

Explanation:

Hola.

En este caso, es posible determinar el periodo y grupo por medio de la configuración electrónica del elemento que tiene 12 electrones:

1s^2,2s^2,2p^6,3s^2

De este modo, vemos que el termino final es 3s^2, por lo tanto, decimos que el periodo es 3, ya que este coincide con el nivel de energía. Adicionalmente, para s^2 tenemos que el átomo se encuentra en el grupo IIA ya que tiene dos electrones en su capa o nivel (3) más externa. Esto coincide con el número cuántico dado (magnético, ml=0) ya que cuando el término en la configuración electrónica tiene el subnivel s, este tiene un valor de cero.

Así, el elemento en cuestión sería Magnesio.

¡Saludos!

3 0
3 years ago
Is melting cheese a chemial or physial change
OLEGan [10]
Melting cheese is a physical change.
8 0
3 years ago
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A sky diver jumps out of a plane and reaches terminal velocity at 91 meters per second. How far will she fall in 35 seconds?
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According to this question, reaches terminal velocity at 91 meters per second

8 0
3 years ago
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