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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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If there are oncoming cars to the left of you and a child on a bike to the right, what is the correct action to take

tankabanditka [31]

Answer:

Give the child a lot of room to your side, which may mean moving closer to the oncoming vehicles.

Explanation:

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2 years ago

A center-seeking force related to acceleration is _______ force.

Gennadij [26K]

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vichka [17]

The answer to it is the letter A

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2 years ago

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A 15 kg runaway grocery cart runs into a spring with spring constant 230 N/m and compresses it by 56 cm .What was the speed of t

liubo4ka [24]

To solve this problem we will apply the concepts related to the conservation of kinetic energy and elastic potential energy. Thus we will have that the kinetic energy is

$KE = \frac{1}{2} mv^2$

And the potential energy is

$PE = \frac{1}{2} kx^2$

Here,

m = mass

v = Velocity

x = Displacement

k = Spring constant

There is equilibrium, then,

KE = PE

$\frac{1}{2} mv^2 = \frac{1}{2} kx^2$

Our values are given as,

$x=0.56m\\k=230N/m\\m=15kg$

Replacing we have that

$\frac{1}{2} (15)v^2 = \frac{1}{2} (230)(0.56)^2$

$v = 2.19m/s$

Therefore the speed of the cart is 2.19m/s

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2 years ago

Suppose a logs mass was 5kg. After burning, the mass of the ash is 1 kg. Explain what may have happened to the other 4kg?

Helen [10]

Well, we know that mass is conserved, so the missing 4 kg couldn't
just disappear. It had to go somewhere.

It may have left the burning log in the form of hot gases and smoke particles.

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2 years ago