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UkoKoshka [18]
3 years ago
10

A given atom has 3 protons, 4 neutrons, and 3 electrons. Describe how you can use those three values to describe the structure,

charge, and mass of the atom.
Physics
2 answers:
pogonyaev3 years ago
5 0
<span>The atomic number of a neutral atom is equal to the number of protons and the number of electrons of the atom. The atomic weight meanwhile is equal to the sum of the number of protons and number of neutrons. In this case, the atomic number of the atom is 3 and the atomic mass is 7. Hence the element is Lithium, a metal </span>
lilavasa [31]3 years ago
3 0

Answer and Explanation;

Structure; the nucleus has 3 protons and 4 neutrons, while the energy levels or the orbitals have 3 electrons. The identity atom is lithium atom (3 protons and three electrons) with an electron configuration of 1s^2 2s.

Charge; the atom has zero charge; it is neutral because the number of protons is equal to the number of electrons.

Its atomic number is 3; since atomic number is the number of protons in the nucleus of an atom (3 protons).

It has a mass number of 7; mass number is the sum of neutrons and protons in the nucleus of an atom ( 3 protons + 4 neutrons).

Atoms contain three sub-atomic particles called protons, neutrons and electrons. The protons and neutrons are found in the nucleus at the center of the atom. The nucleus is very much smaller than the atom as a whole. The electrons are arranged in shells around the nucleus.

In a neutral atom the number of electrons in an atom is always the same as the number of protons (protons = electrons).

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34000×0.4<br> ----------------<br> 0.02×200<br> In scientific notation
VashaNatasha [74]

Answer:

the simplified expression is written as 3.4 x 10³

Explanation:

Given expression;

\frac{34000\times 0.4}{0.02 \times 200}

in scientific notation, the expression is simplified as;

\frac{34000\times 0.4}{0.02 \times 200}  = \frac{13600}{4} = 3400 = 3.4 \times 10^3

Therefore, in scientific notation, the simplified expression is written as 3.4 x 10³

4 0
3 years ago
After watching this video, Blake, a student in an introductory physics class, makes the following claim: The acceleration and ve
Maru [420]

Answer:

Please see below as the answer is self- explanatory.

Explanation:

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  • This  is needed because velocity changes as a continuous function of time, so it needs to cross the t-axis when passing from positive to negative or vice versa.
  • However, the claim that in the moment that velocity is zero, the acceleration is also zero, is false.
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8 0
3 years ago
When the atmosphere is absolutely unstable, the environmental lapse rate is ________ the dry adiabatic lapse rate.
insens350 [35]

Answer: greater than

Explanation:

5 0
3 years ago
A scientist hypothesizes that the temperature at which an alligator's egg is incubated will determine whether the alligator will
WINSTONCH [101]

Answer:

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Explanation:

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The gender of the alligator, its hypothesized, will be determined by the temperature, so, its the dependent variable in our hypothesis.

The incubator will be used in all the eggs of the experiment, so, its not a variable.

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4 years ago
A car travels 50 miles in 2.5 hours. Calculate the average velocity
Dahasolnce [82]
In order to calculate velocity, we would need to know where the car was
when it started out, and where it was when it stopped.  Without any of this
information, the best we can do is calculate its average speed.

Average speed = (distance covered) / (time to cover the distance)

                           =     (50 miles)            /       (2.5 hours)

                           =              (50 / 2.5)      mile/hour

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5 0
4 years ago
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