
1) Last I checked, the heaviest atom confirmed was Oganesson, with an atomic number of 118...
5. A wave function for an electron in an atom is called an atomic orbital; this atomic orbital describes a region of space in which there is a high probability of finding the electron. Energy changes within an atom are the result of an electron changing from a wave pattern with one energy to a wave pattern with a different energy (usually accompanied by the absorption or emission of a photon of light). Each electron in an atom is described...
1) Define the following: matter, element, atom, trace element, proton, electron, neutron, atomic number, mass number, isotopes, radioisotope, molecule, compound, salt, ion. 2) List the 6 elements that make up about 99% of the weight of an organism. 3) What are the functions of the trace elements iron, fluorine (fluoride), and iodine? 4) An iodine deficiency can result in goiter. True/False 5) Where are protons, neutrons and electrons located? 6) Can you determine the atomic number and mass number from...
A hydrogen chloride molecule consists of a hydrogen atom whose mass mH is 1.01 u (atomic mass units) and a chlorine atom whose mass is mCl is 35.0 u. The centers of the two atoms are a distance d = 1.27 × 10−10 m = 127 pm apart. We want the rotational inertia Icom of the molecule about an axis perpendicular to the line joining the two atoms and passing through the center of mass of the molecule. We will...
i need the answers to all 10 questions please
principal quantum number, angular momentum quantum number, magnetic (1) The shape of an electron orbit is determined by: quantum number, or electron spin quantum number. (2) For the sad shell, the number of possible orbits is: n =5 50 n=1 n2 n: 3 z 9 19 Questions 2. 6, 8, 9, 12, 18 (3) For the so shell, the maximum number of electrons is: 2, 6, 8, 9, 12, 118 [4]...
15. The planetary model of the atom pictures electrons orbiting the atomic nucleus much as planets orbit the Sun. In this model you can view hydrogen, the simplest atom, as having a single electron in a circular orbit 1.06xl diameter. (a) If the average speed of the electron in this orbit is known to be 2.20x10° m/s, calculate the number of revolutions per second it makes about the nucleus. (b) What is the electron's average velocity? 0-10 m in
Do not refer to the text when taking this test. An element has an atomic number of 11 and an atomic weight of 23. Its number of neutrons is a. 11. b. 12. c. 23. d. 24. The atom of an clement has 1 proton and 2 neutrons. Its atomic number is a. 1. b. 2. c. 3. d. 6. The atom of an element has 6 protons and 8 neutrons. The number of electrons in this atom is a....
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Nae Section -Date Now let's look at chlorine A chlorine atom has how many protons Therefore, we know that a chlorine atom has how many electrons? How many electrons will go in the first shell? How many in the second shell? Nucleus How many in the third? Draw this in Figure 2.2 We know that a chlorine atom requires eight electrons in its valence shell to become stable. Will it be easier for chlorine to...
Question 8 1 pts If the last electron added to an atom can be described with quantum number as n = 5 and which of the following is the correct electron configuration for the atom? Ar}45300p Ar145 [kr] Ne]43 If the last electron added to an atom can be described with quantum number as n - 3 and 1-2, which of the following is the correct electron configuration for the atom? • (Ar58² Ar145-342 Ne]3-30 INe|43d
Question 8 1 pts If the last electron added to an atom can be described with quantum number as n = 4 and I = 1, which of the following is the correct electron configuration for the atom? O [Ar]4s23d104p2 [Ar]4s3d5 [Ar]4523010 [Ne]3s23p6
1. Give the ground-state electron configuration for carbon (atomic number 6) sa 82p 2 Give the ground-state electron configuration for fluorine (atomic number 9). 3. Give the ground-state electron configuration for magnesium (atomie number 12), 4. How many electrons does silicon have in its valence shell? Write valid Lewis (electron-dot) structures for each formula below. Show all electrons as dots and show al non-bonding electrons. 5. CC tetrachloroethylene CO2 carbon dioxide 7. CHO methanol 8. The structure of urea is...