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MrRissso [65]
3 years ago
7

What are the two parts of an atom? the nucleus and the proton cloud the neutron and the electron cloud the neutron and the proto

n cloud the nucleus and the electron cloud
Chemistry
2 answers:
horsena [70]3 years ago
8 0

The correct answer is D. The nucleus and the electron cloud

Explanation:

An atom is the smallest particle that composes all matter in the universe. Atoms are composed of three main sub-particles: neutrons, protons (positively charged), and electrons (negatively charged). Additionally, the neutrons and protons are in the center of the atom and form the nucleus that has a positive charge due to the protons, while the electrons negatively charge are not in the nucleus but orbit as part of electron clouds that surround the nucleus. Thus, the two parts of an atom are the nucleus that contains protons and neutrons and the electron cloud that contains electrons.

jeka57 [31]3 years ago
5 0
The nucleus and the electron cloud are the two parts !!

if you need explanation ; comment !!
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drek231 [11]
<h3>Solution-:</h3>

  • option D
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4 0
3 years ago
According to the big bang theory, which statement is accurate about how the universe came to be?
DIA [1.3K]

Answer:

The term Big Bang defines that the Universe has expanded from the ancient hot and thick primary situation at some fixed time in the past.

Big Bang theory refers to the origin of the Universe. In the beginning, universe is very heavy and small hot ball of matter. It was a point no bigger than the head of a pin when all the things squished with each other and universe is expanded with huge explosion of energy. Due to expansion, it is cooled and results in the formation of Stars and galaxies. After sometime, atoms formed like helium and hydrogen.

Thus, statement (1), (3) and (4) is correct whereas statement (2) and (5) is incorrect. the right answer is - (It expanded slowly), (Stars and galaxies formed,) (Atoms such as hydrogen and helium formed.)

Explanation:

8 0
3 years ago
Read 2 more answers
A gas exerts a pressure of 350.0 torr at 20.0 Celsius. What would be the new pressure in atmospheres if the temperature is raise
IgorC [24]

Answer:

373.88 torr

Explanation:

P1 = 350 torr

T1 = 20°C = (20 + 273.15)K = 293.15K

P2 = ?

T2 = 40°C = (40 + 273.15)K = 313.15K

From pressure law,

Pressure of a given mass of gas is directly proportional to its temperature.

P = KT

K = P / T

P1 / T1 = P2 / T2

Solve for P2

P2 = (P1 * T2) / T1

P2 = (350 * 313.15) / 293.15

P2 = 109602.5 / 293.15

P2 = 373.878 torr

P2 = 373.88 torr

The new pressure of the gas would be 373.88 torr.

5 0
4 years ago
Read 2 more answers
Need answer today!!!
scoray [572]

Answer:

Calcium for 2+ charge and Fluorine forms 1- charge

Explanation:

5 0
3 years ago
How many formula units are contained in 0.335 g CaO?
krek1111 [17]

Answer: $$3.60 * 10^(21)$$

Explanation: Let's try to create a conversion factor that will take us directly from the number of grams of calcium oxide

4 0
2 years ago
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