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zepelin [54]
3 years ago
12

How many neutrons does beryllium have?

Chemistry
1 answer:
PilotLPTM [1.2K]3 years ago
6 0
5.

i answerd this b4
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Metallic bonds are responsible for many properties of metals such as conductivity true or false?.
Alex17521 [72]

It is true that metallic bonds are responsible for many properties of metals such as conductivity.

Metallic bond is a type of chemical bond.

Metallic bond is formed between electrons and positively charged metal ions.

Substances with metallic bond conduct an electric current in liquid and solid state, because they have mobile electrons.

Most metals (for example sodium, calcium, iron, silver) have strong metallic bond, because strong electrostatic attractive force between valence electrons (metals usually have low ionization energy and lose electrons easy) and positively charged metal ions.

Metallic bond increace electrical and thermal conductivity.

More about metallic bond: brainly.com/question/21081009

#SPJ4

3 0
2 years ago
True or False of the three states of matter, molecules in solids have the greatest
Grace [21]
False. gases have to greatest freedom of motion
6 0
3 years ago
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Calculate the root mean square (rms) average speed of the atoms in a sample of xenon gas at 0.15 atm and -55c
GrogVix [38]
Answer:
Vrms is 149.7266 m/sec

Explanation:
The root means square velocity of a gas can be calculated as follows:
Vrms = \sqrt{ \frac{3RT}{M}}
where:
R is the ideal gas constant = 8.3145
T is absolute temperature = -55 + 273 = 118 degrees kelvin
M is the molar mass of the gas = 131.293 grams = 0.131293 kg

Substituting with these givens in the above equation, we would find that the Vrms is 149.7266 m/sec

Hope this helps :)
7 0
4 years ago
The complete periodic table of the elements with columns color-coded.
Dafna1 [17]

Answer:

peroid num= 3

group num=13  (boron Group)

Explanation:

3 0
4 years ago
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Which statement accurately describes renewable energy sources?
Nikolay [14]

Answer:

D they are quickly replenished. I get this question a good bit so i know the answer.

Explanation:

7 0
4 years ago
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