Which of the scientist's contribution to the Atomic Theory do you consider to be the most significant and why.

Q: Fill in the blanks by writing the name of the definition: is a substance made up of only a single…

A: an element is a substance that cannot be broken down into any other substance every element is made…

Q: suggested that everything was made of atoms

A: According to Dalton's atomic theory,  matter is consists of tiny paricles ,called atoms

Q: Where have you seen elements, atoms, ions, etc in real life? Where did you see them and what were…

A: Elements present in the periodic table can be seen all around us in our day to day life.  Elements…

Q: What was the hypothesis tested by Rutherford?

A: For representing an atom, the New Zealand physicist, Ernest Rutherford, came up with the Rutherford…

Q: Explain about the Indivisible: The Atomic Theory

A: The “indivisible: the atomic theory” was proposed and put forward by English chemist Dalton.…

Q: Measuring the mass and volume of a piece of chalk is a way of investigating its _____. A.Chemical…

A: 1. We need to check if mass and volume are intensive or extensive properties and if they relate to…

Q: There are only two naturally-occuring stable isotopes of lithium, the masses of which are listed in…

A: Lithium has an elemental atomic mass of 6.941 u and has two naturally occurring isotopes, 6Li and…

Q: If we allowed our soap to dry for 1 week the mass would change.  a. Will the mass increase or…

A: Density is a physical quantity that can be determined with the help of the mass and volume of the…

Q: What is the symbol for neon?

A: Neon is a Nobel gas element. It's atomic number is 10. It is a colourless and orderless monoatomic…

Q: Describe the relationship between atoms, elements, and matter

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Q: In our modern view of matter and energy, is the law of massconservation still relevant to chemical…

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Q: 1. What did Democritus contribute to our modern understanding of matter

A: ANSERE IS DISCUSSED BELOW :

Q: Explain John Dalton and the Atomic Theory?

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Q: Highlight the five significant contributions of Robert Boyle, Antoine Lavoisier, and John Dalton to…

A: Robert Boyle was born on 1 Jan 1627. He was a scientist with outstanding experimental skills. He was…

Q: Scientists record their experimental observations and conclusions in a lab book or journal. Write a…

A: Rutherford nuclear model observations: In Rutherford's alpha ray scattering Experiment, It was…

Q: What four fundamental assumptions about atoms and matter make up modern atomic theory?

A: Introduction:     All matter is composed of atoms. Atom is a smallest indivisible particle that…

Q: ne of the best learning in school is learning HISTORY, i.e. the history of Chemistry, we know that…

A: The history of chemistry starts from the ancient time span to the current era. Examples:  1.…

Q: The Law of Conservation of Masses is attributed to the scientist:

A: According to the Law of conservation of mass " the total mass remain conserved which means the total…

Q: True or False -Atomic theory doesn't need to be taken seriously because it's just a theory ....

A: Given statement is, Atomic theory doesn't need to be taken seriously because it's just a theory

Q: Summarize the history of thedevelopment of atomic theory,beginning with Dalton

A: Every matter is made up of atoms. The theory we study today took a long time for its discovery. The…

Q: One of the big problems in chemistry is our dependence upon our five senses (macroscopic…

A: The Brownian motion explain the random movement of atom and molecules in a gaseous state where the…

Q: . Investigate the history of the discovery of chemical elements. What was the most recent element to…

A: History of the discovery of chemical elements: The discovery of the 118 chemical elements known to…

Q: Identify the following as a heterogeneous mixture, a homogeneous mixture, a compound or an element.…

A: An element is a pure substance which is made up of only one kind of atoms while a compound is a…

Q: Based on the following word descriptions, write the formula for each of the indicated substances.a.…

A: A formula of any compound which represents number of the all types of atoms of that compounds…

Q: Q2\Select one answer according to the specific question directions: Copper sulfate is dissolved in…

A: Chemical changes are those changes in which there is a formation of new products while Physical…

Q: How are you considered to be the "living example of matter".

A: Matter Matter is everything that has mass and takes up space.As an illustration, sound and feelings…

Q: explain how the development of the Atomic Theory illustrates the Nature of Science. Support your…

A: It is asked to explain the development of atomic theory illustrating the nature of Science.

Q: Three sceintists that particpated in the discovery and invention or contributed to the early atomic…

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Q: The ratio for an mass-to-charge electron is 5.64x10−12 kg/C. In another experiment, using Millikan's…

A: Millikan did an experiment to determine the mass to charge ratio for an electron which was known as…

Q: The atomic weight of silicon is 28.0855. Round this to 4 significant figures.

A: Given :- atomic wt. of Si = 28.0855  To determine :- given atomic wt. in 4 sig. figs

Q: Summarize the history of the atomic idea?

A: Greek philosophers. Leucippus and Democritus put forward the idea of atoms as far back as the fifth…

Q: Classify each statement as an observation, a law, or a theory.a. Chlorine is a highly reactive…

A: Law: A descriptive generalization about how some aspect of the natural world behaves under stated…

Q: Refer to the diagram below. Key projectile A projectile B projectile C Which projectile was launched…

A: Hence option C is correct that is projectile C.

Q: What is the Law of Definite Composition?

A: The law of definite composition states that any chemical compound will always contain a fixed ratio…

Q: Complete the following shorthand notations: ? (p, a) Li P (a, ?) s 242Cm (a, n) ? Mg (?,p) iNa 15 16…

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Q: Match each scientist to their experiment. JJ Thomson Ernest Rutherford Robert Millikan :: Oil Drop :…

A: Electrons , protons and neutrons are called sub atomic particles. Sub atomic particles are…

Q: Question 7.KMT is based on the idea that particles of matter are in constant motion.  True  False

A: *According to kinetic molecular theory electron are small in size and undergo ramdom motion here and…

Q: Carbon-12 contains 6 protons and 6 neutrons. The radius of the nucleus is approximately 2.7 fm…

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Q: How is the chemical symbol of an element determined? Explain in 200 words.

A: Given : Elements  To find : Chemical symbols Solution : Elements are those Compounds which cannot be…

Q: Explain in your own words, by writing a short paragraph, how the atomic theory predicts the law of…

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Q: Why do we use Roman numerals in chemistry?

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Q: Q1/ which particle of the atom plays major role in physical, electrical and ?magnetic phenomenon

A: Electrons, protons and neutrons are generally called subatomic particles .

Q: Which statements are inconsistent with Dalton’s atomic theoryas it was originally stated? Explain…

A: The statements that are inconsistent with atomic theory of Dalton have to be identified and…

Q: What is the law of definite composition? And what are some examples of matters that obey this law?

A: The law of definite composition states that any chemical compound will always contain a fixed ratio…

Q: What were the challenges that John Dalton went through  including how he got their knowledge to be…

A: John Dalton most famous discoveries include Dalton atomic theory Dalton Law of Partial Pressure.(…

Q: Lithium has only two naturally occurring isotopes. The mass of lithium-6 is 6.01512 amu and the mass…

A: Lithium has only two naturally occurring isotopes. The mass of lithium-6 is 6.01512 amu and the mass…

Q: the atoms listed below, which has the largest mass?   A. all have the same mass B. lead C. uranium…

A: Atoms which have more number of neutrons and protons have greater mass because mass is due to…

Q: The mass of a neutron is 1.6749×10−24 gg , and the mass of a proton is 1.6726×10−24 gg . What is the…

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Q: 31. Which of the following parts of Dalton's theory were proven incorrect with newer versions of…

A: Some points about Dalton's atomic theory :  1)Dalton's atomic theory was the first complete attempt…