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2 years ago

What is the primary atomic characteristic that Mendeleev used to organize the periodic table?

Physics

2 answers:

Fudgin [204]2 years ago

7 0

Atomic number is the answer

Svet_ta [14]2 years ago

6 0

Atomic mass is the primary atomic characteristic that Mendeleev used to organize the periodic table.

The atomic mass (ma) is the mass of an atomic particle, sub-atomic particle, or molecule. It is commonly expressed in unified atomic mass units (u) where by international agreement, 1 unified atomic mass unit is defined as 1/12 of the mass of a single carbon-12 atom (at rest).

The correct answer between all the choices given is the first choice or letter A. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

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An example is when u rub your pen on your hair hard that is friction

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3 years ago

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zysi [14]

Answer with Explanation:

We are given that

Weight of an ore sample=17.5 N

Tension in the cord=11.2 N

We have to find the total volume and the density of the sample.

We know that

Tension, T= $W-F_b$

$F_b$ =buoyancy force

T=Tension force

W=Weight

By using the formula

$11.2=17.5-F_b$

$F_b=17.5-11.2=6.3$ N

$F_b=V_{object}\times \rho_{water}\cdot g$

Where

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$\rho_{water}=1000 kgm^{-3}$ =Density of water

$g=9.8 ms^{-2}$ =Acceleration due to gravity

Substitute the values then we get

$6.3=9.8\times 1000\times V_{object}$

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Volume of sample= $6.43\times 10^{-4} m^3$

Density of sample, $\rho_{object}=\frac{Mass}{volume_{object}}$

Where mass of ore sample=1.79 kg

Substitute the values then, we get

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3 years ago

4. What is the acceleration of the car in each section? b с d a

makvit [3.9K]

Answer:

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Explanation:

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3 years ago

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choli [55]

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3 years ago