1. What is the name of John Dalton's theory? 2. What are elements made of? 3. An atom of hydrogen and an atom of carbon are 4. What are compounds made of? 5. The ratio of atoms in HCI is: J. J. Thomson was an English scientist He discovered the electron when Atomic Structure he was experimenting with gas discharge tubes. He noticed a movement in a tube. He called the movement cathode rays. The rays moved from the negative end of the tube to the positive end. He realized that the rays were made of negatively charged particles - electrons.

1. What is the name of John Dalton's theory? 2. What are elements made of? 3. An atom of hydrogen and an atom of carbon are 4. What are compounds made of? 5. The ratio of atoms in HCI is: J. J. Thomson was an English scientist He discovered the electron when Atomic Structure he was experimenting with gas discharge tubes. He noticed a movement in a tube. He called the movement cathode rays. The rays moved from the negative end of the tube to the positive end. He realized that the rays were made of negatively charged particles - electrons.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

+ In a sample of 47,500 silver atoms is was discovered that 35.8% of them had a mass of 107.35 amu and the rest has a mass of 109.27 amu. amount of each isotope? 79 and a. How many atoms have a mass of 107.35? b. What is the % of atoms with a mass of 109.27? C. What is the atomic mass of this sample?
According to the periodic table, the neutral atom of what clement has 4 protons, 5 neutrons, and 4 clectrons? A. beryllium B. boron C. fluorine D. aluminum O A O B
Which pair of elements do you expect to be the most similar? a. Molybdenum and Tin b. Nitrogen and Nickel c. Silicon and Phosporous d. Sodium and Magnesium e. Chorine and Fluorine
Answer number 36 to 40 pls. I don't want to wsste my money here.
3. Write the letter of the term that correctly completes the sentence. Elements are different because their atoms contain different numbers of a. electrons b, protons d. nuclei hestal number of protons and neutrons c. neutrons
Please help me answer questions 3 & 65. 3. Oxidation is A. the loss of protons by an atom or molecule. B. the gain of oxygen by a cell. C. the loss of electrons from an atom or molecule. D. the loss of oxygen from a cell. E. The gain of electrons by an atom or molecule. 65. The atomic number of an atom or element is the number of A. neutrons in the nucleus. B. protons in the orbitals. C. Electrons in the nucleus. D. Neutrons in the orbitals E. Protons in the nucleus.
2. Which element forms an ion that is larger than its atom? B. Iron A. Sodium ton 11: C. Nitrogen genera C. remains the sam D. Gold
The mass number of an isotope tells you the number of... A.protons and electrons. B. protons. C. nucleons. C. electrons. D. neutrons.
number of fluorine. A tremendous explosion follows emitting light and heat able to be observed from a 41) A teenage child in Wisconsin throws a chunk of sodium metal into a lake consisting of freshwater with an approximate density of 1.01 g/mL. The chunk of sodium has a mass (in kilograms) equal to the atomic number of fluorine. A tremendous explosion follows emitting light and heat able to be observed from a drone flying at an altitude of approximately 53 m. How many atoms of sodium from the original chunk remain in Wisconsin after the reaction is complete? This is an MCAT style question. Keep in mind that some of the data given may not be necessary to solve the problem. Use four sig figs. 1.019/mL ら3m a) 4.616E25 b) 2.357E23 c) 2.853E26 d) 8.390E22 53
4. An atom is electrically neutral because the A. number of protons equals the number of electrons B. number of protons equals the number of neutrons C. ratio of number of neutrons to the number of electrons is 1:1 D. ratio of number of neutrons to the number of protons is 1:1.5 21Illuminate Education TM Inc. DELL F3 F4 F5 F6 F7 F8 F9 F10 SC F1 F2 # $ & 3 7 8 W T Y A S F 1H C Alt E
The relative atomic masses of elements are seldom whole numbers because A. atoms of some elements have different atomic numbers. B. atoms of some elements have different masses. C. atoms of some elements have different numbers of electrons. D. atoms of some elements can form ions.
Which element is represented by the following symbol A. Chromium B. germanium C. barium D. iron