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mixas84 [53]
4 years ago
6

Explain how elements are arranged on the periodic table. In other words, explain why they are not just listed in one long list,

but are instead grouped into rows and columns. Also, describe the placement of metals, metalloids, non-metals, and noble gases on the periodic table.
Chemistry
1 answer:
Anton [14]4 years ago
3 0
They are grouped together by the type of elements they are
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What is the difference between a conductor and an insulator?
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Answer:materials that impede the free flow of electrons from atom to atom and molecule to molecule.

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How red blood cells different to animal cells
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By contrast, the red blood cells of mammals lack nuclei and other internal structures found in most animal cells. This simplification allows mammal red blood cells to carry more gas-transporting proteins and to squeeze through smaller blood vessels.

Explanation:

4 0
3 years ago
2. Lithium-6 is 4% abundant and lithium-7 is 96% abundant. What is the average mass of lithium?
Lisa [10]

Answer:

Average atomic mass = 6.96 amu.

Explanation:

Abundance of Li-6 = 4%

Abundance of Li-7 = 96%

Atomic mass of Li-6 = 6 amu

Atomic mass of Li-7 = 7 amu

Average atomic mass = ?

Solution:

Average atomic mass  = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass)  / 100

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Average atomic mass = 6.96 amu.

8 0
3 years ago
One limitation of daltons atomic theory in the study of matter​
yawa3891 [41]

Answer: Now it is proved that the atom consists of particles like electrons, protons, and neutrons.

Explanation: because he did not have the tech we do to understand atoms

5 0
4 years ago
According to Coulomb’s law, what will happen to the electric force between
Deffense [45]

Answer:

C. Fe will stay positive and increase in magnitude.

Explanation:

Coulomb's law states that the force of attraction of repulsion between two charged particles is directly proportional to the magnitude of their charges and inversely proportional to the square of the distance of separation between them.

This means that if the size of the charges are large, the force acting on them will be large as well. Also if the distance between the two charges increases the force decreases. However, the force increases when the distance of separation decreases.

Like charges repel, therefore, two negative charges brought together will repel each other, and the distance between the two charges decreases, the force will increase in magnitude. Forces of repulsion are considered positive, therefore, the force, Fe, will stay positive and increase in magnitude.

8 0
3 years ago
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