WebScience Chemistry 1. Which isotope in each pair contains more neutrons? a. chlorine-35 or sulfur-33 b. fluorine-19 or neon-19 c. copper-63 or zinc-65 d. iodine-126 or tellurium-127 2. Write the complete atomic symbol for each of the following isotopes. a. carbon-13 b. phosphorus-31 c. sodium-23 d. boron-10 3. WebChlorine-36 is composed of 17 protons, 19 neutrons, and 17 electrons. Trace amounts of radioactive 36 Cl exist in the environment, in a ratio of about 7×10 − 13 to 1 with stable …
Chap 2 Flashcards Quizlet
WebUse the atomic mass of the elements to determine the percent of composition by mass of sodium and chlorine in table salt (sodium chloride).Sodium=Na=23.0 gChlorine=Cl=35.5 gSodium Chloride=NaCl=58.5 g 19. wwhat is the mass per atom of magnesium, aluminum, nitrogen,sodium and gold WebAug 23, 2024 · So although chlorine has a mass number of 35 which means it has 18 neutrons, it can also have a mass number of 37, which means it has 20 neutrons. How … fillrite df120can520-rp
The mass number of chlorine is 35.5. Does it have an extra 0.5
WebPotassium-40 is composed of 19 protons, 21 neutrons, and 19 electrons. Traces of K-40 are found in all potassium, and it is the most common radioisotope in the human body. K-40 is a radioactive isotope of potassium which has a very long half-life of 1.251×10 9 years and undergoes both types of beta decay. WebChlorine: Symbol: Cl Atomic Number: 17: Atomic Mass: 35.453 atomic mass units: Number of Protons: 17: Number of Neutrons: 18: Number of Electrons: 17: Melting Point-100.98° … WebFalse. The elements lithium, sodium, and potassium ____. a. are isotopes of each other. b. are in the same period of elements. c. have the same number of neutrons. d. are in the same group. e. have the same mass number. d. are in the same group. Select the correct symbol for the element named: aluminum. ground mica