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oksano4ka [1.4K]
3 years ago
12

What information would allow you to determine whether two atoms are of the same or different elements?

Chemistry
1 answer:
NISA [10]3 years ago
5 0

Explanation:

As we know that sum of only total number of protons are also known as atomic number of an atom. And, the sum of total number of protons and neutrons is known as atomic mass of an atom.

Number of protons help in determining the identity of an atom whereas the number of neutrons can be same for two or more number of atoms. But the number of protons will remain the same for a particular atom and for its isotopes.

For example, tex]^{1}_{1}H[/tex] and ^{3}_{1}H are isotopes and each of them contains 1 proton.

thus, we can conclude that the number of protons in their nuclei would allow you to determine whether two atoms are of the same or different elements.

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A app181.studyisland.com
grandymaker [24]

C. At some point, the land masses were connected to each other.

Explanation:

The fossils now exists far away from each other because at some point, the land masses were once connected to each other. Now, the land masses have drifted apart due to plate tectonics.

Alfred Wegener a scientist in 1912 first formulated the theory of continental drift. The theory suggests that present day land masses have moved to their present positions.

  • A more refined theory of plate tectonics is now in play today and it provides a better understanding to why we can find similar features across different continents.
  • The similar fossils must have formed together when the land masses were once joined together.
  • Noe that the land masses are separated, the fossils species are not separated.

learn more:

Continental drift brainly.com/question/5002949

#learnwithBrainly

8 0
3 years ago
Within a single molecule of water, two hydrogen bonds are bonded to a single oxygen atom by_______.However when there are multip
Gnesinka [82]

Answer:

covalent bonding, hydrogen bonding

Explanation:

<u>The molecular formula of water is H_2O in which the two hydrogen atoms are connected to the oxygen atom via covalent bonds which means that the electrons are shared in the bond.</u>

Hydrogen bonding is a special type of the dipole-dipole interaction and it occurs between hydrogen atom that is bonded to highly electronegative atom which is either fluorine, oxygen or nitrogen atom.

Partially positive end of the hydrogen atom is attracted to partially negative end of these atoms which is present in another molecule. It is strong force of attraction between the molecules.

<u>Thus, when multiple water molecules are there, there are connected by hydrogen bonding.</u>

8 0
3 years ago
Read 2 more answers
Which of the following represents a physical change?
vivado [14]
A. phase changing.  Physical change is any change in matter that involves the substance going from one physical state to another, and phase change is most commonly used to describe transitions between solid, liquid and gaseous states of matter.
8 0
3 years ago
Which image represents a homogeneous mixture?
Pani-rosa [81]
Imagine A is a Heterogeneous mixture because it a mixture composition that does not stay the same throughout the mixture.
Imagine B is the Homogeneous mixture because it has no changes or irregularities
4 0
2 years ago
Which item is made from a synthetic material?
seropon [69]
First one because Common synthetic materials are nylon, acrylic, polyester, carbon fiber, rayon and spandex. Synthetic materials are made from chemicals and are usually based on polymers. They are stronger than natural and regenerated materials.
7 0
3 years ago
Read 2 more answers
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