Which statement best describes the organization of the periodic table of the elements

Answers

Answer 1

Answer:Elements within a period have the same number of electrons.

Related Questions

Which of the following are used to determine whether a substance is an acid or a base? (select all that apply)
orange juice
litmus paper
universal indicator
water

Answers

Litmus paper and I believe the other one is the universal indicator

How many atoms are in 4.67 moles of lead ?

Answers

Do you still need help?

Answer:

i believe the answer is 2.812

Explanation:

how does resistance change with temperature? is there more resistance or less resistance at higher temperatures?

Answers

Answer:

resistance becomes lower at higher temperatures.

Explanation:

molecules expand instead of compact

I need urgent help for this

Answers

Yeah I’m pretty sure it’s not going right now I don’t think so cause are doing ok I don’t know if you know I have a good day at school tomorrow and I’ll see when I’m coming to see my dad so I’ll tell her mom I said yeah she didn’t have a soccer class she didn’t know if I could do anything for you I didn’t have her room I

Evergreen trees have leaves that stay green all year long. Many evergreens have needles that remain on the tree through changes in the seasons, unlike broad leaf trees that lose their leaves in preparation for winter. How might this adaptation help evergreen trees survive in the taiga, a cold biome with long, dark winters?

Answers

Answer:

See explanation

Explanation:

The leaves or needles of evergreen trees lose less water than other kinds of leaves. This means that they are better able to conserve water in the taiga, a cold biome with long, dark winters.

These conifers possess adaptations that are able to help them survive the long, cold winters and short summers in a typical taiga biome since their needles contain very little sap, which also helps prevent them from freezing.

Which of the following explains how Marie and Pierre Curie tried to influence the use of their discovery?
They supported the use of radioactive elements in generating inexpensive power.
They opposed the use of energy released during nuclear fission at the time of war.
They supported the use of radioactive elements for medical diagnostic purposes.
They opposed the use of nuclear fusion during the Manhattan Project.

Answers

Answer:

The answer is “They supported the use of radioactive elements for medical diagnostic purposes”.

Answer:

They supported the use of radioactive elements for medical diagnostic purposes.

Explanation:

(Its a recorded fact)

I’m not sure why it’s not letting me post comment but this is the correct answer for my last question.

Answers

Answer:

oh okie nice work

thanks for the remainder

How many protons does Na have?

Answers

Answer:

11 protons

Explanation:

Answer:

11 protons

Explanation:

since it is neutral it has 11 electrons as well

The function of the nervous system is to A) help protect the body from disease. B) bring oxygen, nutrients and hormones to cells. C) control growth, development, metabolism and reproduction. D) coordinate the body's response to changes in its environment.

Answers

Answer:

D is correct.

Explanation:

An unknown metal, "X," reacts to make a compound that has the formula X(OH). Which of the following metals could possibly be the identity of metal X?

Answers

Could u tell me the answers?

An atom has a mass number of 19 and an atomic number of 9. What
element is it? What is its symbol? How many protons, neutrons, and
electrons does it have?

Answers

Fluorine, it has 9 protons, 9 electrons, and 10 neutrons.

You notice after you walk across a room, you feel a spark when you touch the doorknob. What energy transformation must have taken place?

Choices Are:
-Thermal to Radiant
-Mechanical to Electrical
-Radiant to Mechanical

Answers

Answer:

Thermal to Radiant

Explanation:

What particle is emitted during the following transmutation:
6729Cu→6730Zn+
____?

A.beta particle,
0−1e

B.
positron,
01e

C.alpha particle,
42He

D.gamma particle,
00γ

Answers

Answer:

A beta particle, = ₋₁⁰e

Explanation:

Alpha beta and gamma radiations are the examples of ionizing radiations.

Beta radiations are result from the beta decay in which electron is ejected. The neutron inside of the nucleus converted into the proton an thus emit the electron which is called β particle.

Properties of beta radiations:

The mass of beta particle is smaller than the alpha particles.

They can travel in air in few meter distance.

These radiations can penetrate into the human skin.

The sheet of aluminum is used to block the beta radiation

⁶⁷₂₉Cu → ⁶⁷₃₀Zn + ⁰₋₁e

The beta radiations are emitted in this reaction. The one electron is ejected and neutron is converted into proton.

witch characteristic of a mineral states that it cannot come from somthing living or formally living

Answers

Answer:

It is inorganic

Explanation:

The characteristic of minerals that states that it cannot come from something living is that minerals are inorganic chemical substances.

A mineral is a defined as a naturally occurring solid inorganic chemical substance, made up of a definite composition and well defined crystal structure.

As an inorganic solid, minerals cannot be produced in living cellsOrganic compounds are produced in living organisms. All minerals except for a few are produced by non-living processes.

please help i will mark brainlist

Answers

Answer:

they be Cappin like a mf

Explanation:

tell the truth mf

I think the answer is 10!

What is the comversion factor used when converting mass to moles?

A. 6.02 x10 particles = 1 mole

B. 22.4L = 1 mole

C. the answer is not listed

D. molar mass = 1 mole

Answers

Answer:

6.02 x 10^23 particles = 1 mole

Explanation:

If A. has 10 to the power of 23 then that is the answer, but if it does not, then the answer is C.

9 Dr. Garcia is performing an experiment to see how cell division in flies is affected by the addition of a certain protein, called protein W, into a cell's cytoplasm. She has found that adding protein W to a cell drastically reduces the chances of the cell becoming cancerous. For protein W to be developed into a cancer treatment, what comparison should she make?

Answers

Answer:

The fly cells must be compared with human cells

Explanation:

Dr. Gracia's aim is the development of a potential cancer treatment. Remember that the treatment is meant for human beings.

Usually, the pre-clinical trials of the treatment is carried out on other organisms and the success rate is evaluated before trial on humans.

If protein W has been effective on flies, its effect on human cells should also be diligently compared before conclusions are drawn regarding the therapeutic effects of protein W.

4. This is a diagram of a sol texture triangle. Farmers can use this chart to identify the type of soil found on their land and determine the likelihood of erosion and other important factors. What type of soil does a farmer have if the soil contains 40% sand, 40 silt, and 20% clay?

Answers

Type of soil : Loam

Further explanation

A mixture is a combination of two or more single substances. The properties of the mixture component are not lost / unchanged as in compounds.

The mixture can be divided into a homogeneous mixture if the composition/ ratio of each substance in the mixture is the same and a heterogeneous mixture if the ratio of the composition of the substances is not the same (can be varied) in each place.

Soil is part of a mixture that has a different composition

To find the type of soil, we just need to draw a line of intersection between the 3 compositions shown

So the soil contains 40% sand, 40 silt, and 20% clay : Loam

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