What is the atomic number of an element that has six protons and eight neutrons?

Answers

Answer 1

Answer: The element would be Carbon, which is number 6 on the periodic table, therefore having an atomic number of 6.

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As a chemical reaction occurs, the thermometer in the container records an increase in temperature. What is true of the reaction? The reaction is endothermic because heat was taken in by the reaction. The reaction is exothermic because heat was released by the reaction. The reaction is endothermic because heat was released by the reaction. The reaction is exothermic because heat was taken in by the reaction.

Why am i not good enough :,(

Answers

You are good enough. Times are tough know but believe it’ll get better.

there is no answer

because everyone is perfect in their own way

;)

Which of the following is true about the concept of half-life?A. Half-life measures the rate of decay of a radioisotope.
B. The shorter the half-life, the more dangerous the radioisotope.
C. Half-life predicts which atoms in a radioactive sample will decay.

I think it`s A?

Answers

Its A. because it measures the rate of the decay of the isotope

it is A Half-life measures the rate of decay of a radioisotope.

I took the test

Whose work directly resulted in the development of an atomic model that has negative electrons stuck within a sea of positive material?

Answers

The discoverer of the electron was Thomson. J. J. Thomson portrayed his atom model to look like a plum pudding. In his model, he described that an atom is composed mainly of electrons stuck within a sea of positive material.

Final answer:

The 'plum pudding' model of the atom, which depicted negative electrons embedded in a positively charged mass, was proposed by J.J. Thomson in 1904. This model was later superseded by Ernest Rutherford's nuclear model, which described the atom as having a central, positively charged nucleus surrounded by orbiting electrons.

Explanation:

The atomic model that portrays negative electrons embedded within a sea of positive material is known as the 'plum pudding' model. This model was proposed by J.J. Thomson in 1904. It describes an atom as being primarily composed of an unknown positively charged mass, with negative electrons interspersed within, akin to plums in a pudding.

Thomson's model was a significant step forward in atomic theory, but it was also fundamentally flawed. It was eventually superseded by the nuclear model of the atom, proposed by Ernest Rutherford and his colleagues in 1911. Rutherford's model proposed that most of the atom's mass and its positive charge is concentrated in a central nucleus, with the negative electrons orbiting this central core, rather like the planets orbit the sun. This model more accurately accounts for atomic behavior and structure as we understand them today.

Learn more about Atomic Models here:

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What would happen if you play a note in a cold day on a flute?

Answers

I don't know if this is the answer you are looking for but it would be flat unless the player pushed the tuning slide in.

Explain by referring to the atomic structure of carbon. Compare between carbon fiber and iron (Fe) in terms of durability and performance.

Answers

Carbon is a chemicalelement with a chemical symbol "C". It has an atomic number of 6. That means a carbon atom has 6 protons, 6 neutrons, and 6electrons. Since carbon is in the second row (or second period), it has 2 electron orbits. Use the clay to make your protons and neutrons in the nucleus.

However, some factors do influence its durability, like its matrix. Furthermore, the intense use of composites and environmental factors could affect its durability and potential applications.

Difference between carbon fiber and iron

Carbonfiber is five-times stronger than iron( FE ) and twice as stiff. Though carbon fiber is stronger and stiffer than Iron (Fe) it is lighter than steel; making it the ideal manufacturing material for many parts. These are just a few reasons why carbon fiber is favored by engineers and designers for manufacturing.

Steel with more carbon is harder and stronger than pure iron, but it also breaks more easily (brittle).

Answers

One atom of silicon is perfectly combined with the $\boxed{{\text{two atoms of oxygen}}}$ and forms silicon dioxide.

Further explanation:

Law of multiple proportions:

This law states that the molecule is a particle that is made up of two or more element. The elements are always combined in a ratio of fixed whole number.

Silicon has electron configuration $\left[{{\text{Ne}}}\right]3{s^2}3{p^2}$ so it can form 4 covalent bonds with other atoms.

One atom of silicon is combined with hydrogen in 1:4 ratio and form ${\text{Si}}{{\text{H}}_4}$ . This compound is known as silane. Thus silicon is not able to combine with three hydrogen atoms.

One atom of silicon is combined with calcium as calcium silicate $\left({{\text{C}}{{\text{a}}_{\text{2}}}{\text{Si}}{{\text{O}}_{\text{4}}}}\right)$ and Calcium silicon $\left({{\text{Ca}}{{\text{H}}_{\text{4}}}{\text{Si}}}\right)$ . Therefore, silicon would not be able to combine with 4 calcium simultaneously.

One atom of silicon is combined with oxygen in 1:2 ratio and form ${\text{Si}}{{\text{O}}_2}$ . This compound is known as silicon dioxide. Thus silicon can combine with two oxygen atoms.

One atom of silicon is combined with chlorine in 1:4 ratio and form ${\text{SiC}}{{\text{l}}_4}$ . This compound is known as silicon tetrachloride. Thus silicon is not able to combine with one chlorine.

Learn more:

1. Calculate the moles of chlorine in 8 moles of carbon tetrachloride: brainly.com/question/3064603

2. Which law states the direct relationship between volume and absolute temperature at constant pressure? brainly.com/question/1403211

Answer details:

Grade: Senior School

Subject: Chemistry

Chapter: Mole concept

Keywords: One atom of silicon, properly combined, three atom of calcium, one atom of chlorine and two atom of oxygen.

your answer is c. two atoms of oxygen.

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