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3 years ago

What type of electron is available to form bonds?

Physics

1 answer:

emmasim [6.3K]3 years ago

3 0

Answer:

Valence electrons

Explanation:

The valence electrons are found in the outermost shell of an atom. They are the most loosely held electrons found within an atom. These valence electrons are involved and are used to form bonds when atoms combines together.

The energy required to remove these loosely held electrons is relatively low compared to electrons located in the inner orbitals. This is why when atoms combines, they use the outermost electrons to form bonds and mimic stable atoms like those of the noble gases.

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A star is moving away from an observer. Toward which end of the spectrum does its visible light shift?.

scZoUnD [109]

Answer:

Redshift, or lower power

Explanation:

doppler effect

waves get stretched when you are moving away from something, and squished when you are moving towards it. Imagine you have a long, bent wire. if you stretch out the wire, the wavelength becomes longer. This also applies to sound.

4 0

2 years ago

In a magnet an (what?) is a pull between the north and south pole

Nina [5.8K]

A MAGNET IS A MATERIAL OR OBJECT THAT PRODUCES A MAGNETIC FIELD

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3 years ago

Modern human lifestyle depends on fossil fuels to generate electricity. Predict and explain the long term effect on the environm

Anit [1.1K]

Fossil fuels are non-renewable sources of energy as they are derived from pre-historic fossils and it is certain that they will deplete in the near future. 
The bigegst disadvantage of the fossil fuels is that they release carbon dioxide, nitrogen dioxide, sulfur dioxide, carbon monoxide gasses, which lead to serious environmental issues such as air pollution. They are responsible for the global warming..
Besides the environmental effect, carbon dioxide can also cause serious health complications such as chronic asthma, low lung functioning, chronic bronchitis..

3 0

3 years ago

A normal human body temperature can range from 33.2∘C to 38.2∘C. This range includes variations with gender, time of day, and wh

Tpy6a [65]

To develop this problem it is necessary to use the expression that allows us to convert the degrees Celsius to Fahrenheit. The expression that allows to realize it is given mathematically by:

$\°F = (\°C* \frac{9}{5}) + 32$

In this way for 33.2 °C:

$\°F = (\°C * \frac{9}{5}) + 32$

$\°F = (32.2* \frac{9}{5}) + 32$

$\°F = 91.76$

In this way for 38.2°C

$\°F = (\°C * \frac{9}{5}) + 32$

$\°F = (38.2* \frac{9}{5}) + 32$

$\°F = 91.76$

Expressed in a range term, we can say that the measure in degrees Fahrenheit is:

$[91.76\° F , 100.76\° F]$

8 0

3 years ago

Saturn’s moon titan has a mass of 1.35 × 10^23 kg. if titan is 1.19 × 10^6 km from saturn, and saturn’s mass is 5.86 × 1026 kg,

prohojiy [21]

Answer:The gravitational force equation is Fg=(G*M*m)/r² where, G is the gravitational constant, G=6.67*10^-11 m³/kg*s², M is the mass of Saturn, M=5.86*10^26, m is the mass of Titan, m=1.35*10^23 and r is the distance, r=1.19*10^6 km=1.19*10^9 m. Now we simply input the numbers into the equation:

Fg=(6.67*10^-11)*(5.86*10^26)*(1.35*10^23)/(1.19*10^6)²

Fg=(5.277*10^39)/(1.41*10^18)=3.743*10^21 N

The correct answer is the third one.

Explanation:

6 0

2 years ago