CHEMISTRY HIGH SCHOOL

Select all of the statements that are true.Electrons are located in shells or orbits around the atom.
Electrons orbit slowly around the atom.
Electrons travel in one flat path around the nucleus of an atom.
Electrons are traveling so fast that it is impossible to know their exact locations.

Answers

Answer 1
Answer:

According to the atomic model given by Rutherford, the atom is a dense, and tiny positively charged core known as the nucleus, which is enveloped by lighter and negatively charged electrons. An electron refers to a stable subatomic particle comprising a negative charge, which is found in all the atoms.  

The following are the correct statements:  

1. The electrons are situated in orbits or shells around the atom.  

2. The electrons are traveling so fast, that it becomes almost impossible to locate their precise locations.  
Answer 2
Answer: 1 is true, 
2 is definitely false 
3 is also completely false because 
4 is true. 

So 1&4 

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Which of the following gases are typically used for colorful lighting when an electric current is applied?A) hydrogen and helium
B) argon and krypton
C) fluorine and chlorine
D) oxygen and nitrogen

Answers

B) Argon and Krypton
The unreactive nature of noble gases allows them to be applied in such places without the risk of poisonous leaks or other disasters.
B)Argon and Krypton is applied for that..........

Which of the following is NOT a natural toxin that can contaminate food?a. Ciguatera
b. Methyl Mercury
c. Aflatoxins
d. Dioxins

Answers

Option b. Methyl Mercury (quick silver)

It is a metal that is liquid at room temperature. It's a poisonous mercury. it forms when bacteria react with mercury in water, soil, or plants. It's been used to preserve grain that is fed to animals. It's used in fluorescent lights, batteries, polyvinyl chloride and latex paint.

Which statement compares the masses of two subatomic particles?(1) The mass of an electron is greater than the mass of a proton.
(2) The mass of an electron is greater than the mass of a neutron.
(3) The mass of a proton is greater than the mass of an electron.
(4) The mass of a proton is greater than the mass of a neutron.

Answers

atoms are made of 3 types of subatomic particles - electrons, protons and neutrons

mass of proton is 1 atomic mass unit and proton is also 1 atomic mass unit

masses of protons and neutrons are very similar

mass of an electron is 1/1840th of 1 atomic mass unit

mass of electron is insignificant when compared to masses of neutrons and protons

protons and neutrons have a larger mass than electrons

from the given options correct answer is

(3) The mass of a proton is greater than the mass of an electron
Electrons have mass 0
Protons have mass 1
Neutrons have mass 1

(1) 0 is not greater than 1
(2) 0 is not greater than 1
(3) 1 is greater than 0
(4) 1 is not greater than 1

So the answer is (3) The mass of a proton is greater than the mass of an electron

Will bromine water and magnesium react

Answers

No. Magnesium, and Bromine are a chemical compound when put together.
Neither Bromine, nor Magnesium react with any sort of water.

What is the oxidation number of sulfur in hydrogen sulfide

Answers

H₂S ( hydrogen sulfide ):

H =  + 1

S ( Sulfur ) =  - 2

hope this helps!

What are two elements that form a large number of bonds and that both have similar properties to carbon?

Answers

Silicon and Germanium. You can conclude it from its position in the periodic table. Silicon and Germanium are in the same group of the Carbon. That implies that all three have the same number of electrons in the outer orbital, which is responsible for the bonds.
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Giving brainliest if correct!! please help someone out?