This homework is going to center around a completely made up element Maplenium. This metal has a density of 31.284 lbs/dm³. If you were to find this in the periodic table this is what it's box would look like: 14 MI 37.12157 (1) An ellipsoid (dimensions: ???? x 10.1 mm x 3.33 inches) made with this metal has a mass of 8.22E-2 kg. What is the missing dimension in meters? How many atoms of MI are in this ellipsoid?

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: We are given relative abundance of two isotopes of Sn. We have to find its average atomic mass.

Q: a. How many neutrons are in K-41?b. Write the electron configuration for potassium.c. Which is the…

A: The electron, proton, and neutrons are known as the subatomic particles present in the nucleus of an…

Q: What is the calcium isatope with 20 nevtrons? 才乙

A: The atomic number of calcium is 20 (Number of protons). The symbol of the calcium atom is Ca. The…

Q: and 2 (At Hom ise 2.107 25 of 27 I Review | Constants | Periodic Table ef uses a bag of sand to…

A: Step → Since,       mass = density×volume

Q: 4. The radioactive element 217At is a member of the e. series ... a. 4n b. 4n+1 c. 4n +2 d. 4n +3 e.…

A: Heavy atomic nuclei are unstable and decay through emitting a sequence of alpha and beta particles.…

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: Isotope elements having similar atomic number but different mass number

Q: 77 78 79 80 81 Ir Pt Au Hg TI Iridium Platinum Gold Mercury Thallium 192.22 195.08 196.97 200.59…

A:

Q: Calculate the atomic mass of the element: Mass                Abundance 22.1760             45.00%…

A:

Q: Archeologists discover a gold crown in an ancient tomb. When they place the crown in a tub of water…

A: In the question , Following datas given - (1) Volume of gold crown, displaced by it on placing it in…

Q: Na CI These 2 elements are in the same Period, what Period would it be? 1 18 2

A: Sodium (Na) electronic configurations [ Ne] 3s1 , Last electron is in  3S ,So principal  quantum…

Q: Sr-90 has [ Select ] neutrons than Y-91

A:

Q: f you look at Gallium's atomic mass on the periodic table, which isotope is more abundant in nature:…

A: Gallium belongs to IIIA group in the periodic table. There are two isotopes of Gallium that occurs…

Q: Part C 98 43 Enter your answers numerically separated by a comma. ? ....... Np, Nn = protons,…

A: The question is based on the concept of atomic structure. We have to identify number of subatomic…

Q: Professor E. Lawrence suggested that to separate Uranium-235 from Uranium-238 a mass spectrograph…

A:

Q: The element lithium has an atomic weight of 6.941 amu. There are only two isotopes of lithium,a6Li…

A: Atomic mass of element Li = 6.941 amu Mass of  6Li = 6.0151223 amu Mass of 7Li = 7.0160040 amu.

Q: A rough estimate of the radius of a nucleus is provided by the formula r 5 kA1/3, where k is…

A: The given radius is: where k is the Fermi constant (1.3×10-13cm) and A is the mass no. of Iodine…

Q: Particles called muons exist in cosmic rays and can be created in particle accelerators. Muons are…

A: a)

Q: The mass of a cesium (Cs, atomic number 55) atom is 2.21×10−25 kg, and its radius is R = 2.65×10−10…

A: An atom can be considered as the smallest unit of any matter. An atom is composed of certain…

Q: 2.34 Describe Thomson's model of the atom. How might it ac- count for the production of cathode…

A: Thomson's model of atom is also known as plum pudding model. According to plum pudding model, atom…

Q: Determine the number of protons, neutrons, and electrons in the following: 40x 18 p* = 18 b. pt 18…

A:

Q: 4. Deuterium is an isotope of hydrogen with 1 proton and 1 neutron in its nucleus (deuterium = ²H).…

A: Q - Deuterium is an isotope of hydrogen with 1 proton and 1 neutron in its nucleus (deuterium = 2H).…

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A:

Q: Which of the following elements has its name derived from its property of being slightly magnetic?*…

A: Isotopes are the different forms of an element.

Q: A carbon-12 atom has a mass of 12.00000 amu. The mass of a proton is 1.00728 amu, and the mass of a…

A:

Q: Give the number of protons, neutrons, and electrons in each element: (a) silver-115; (b) 197Au; (c)…

A: General representation of an element : XZA  Z = atomic number = number of protons  Number of protons…

Q: Which of the following does have the largest size?

A: In the periodic table,  Top to bottom atomic size increases,  while left to right atomic size…

Q: An atom is 1.3x10-10 m in diameter. If an atom was 1cm in diameter, how tall would you be (1.78m).

A: The height of a person is 1.78 m when the diameter of an atom is 1.3x10-10 m or 1.3x10-8 cm. Now…

Q: This homework is going to center around a completely made up element - Maplenium. This metal has a…

A:

Q: An a particle, 4He2 + , has a mass of 4.00151 amu. Find the value of its charge-to-mass ratio in…

A: Given, The mass in kilograms in 1 amu is 1.66054 x 10-27 kg Calculate the mass of particle a as…

Q: What is the energy of an X-ray with a wavelength of 5.49 nm?

A:

Q: Are Ni and Cu the same isotope or ion?

A: Nickel is a element with the symbol Ni and atomic number 28. Copper is a element with the symbol Cu…

Q: The element lithium has an atomic weight of 6.941 amu. There are only two isotopes of lithium, 6Li…

A:

Q: A carbon atom has a diameter of 67 pm. If the nucleus of an atom is 100,000 times smaller than the…

A: The volume of sphere (atom or nucleus) is directly proportional to cube of its radius.

Q: 3,1,0, + [Kr] 5s' 3d5 [He] 2s? 2p

A: According to guidelines I am supposed to answer first three part only please ask rest of the part as…

Q: d) how many 4°K atoms are present in a piece of copper block weighing 615 g? The percent isotope…

A: 12. d) The mass of the copper block is = 615 g The percent of 40K isotope is = 12.05 % The number of…

Q: The element lithium has an atomic weight of 6.941 amu. There are only two isotopes of lithium, Li…

A:

Q: While looking at bromine (Br) on the periodic table, a student needs to find another element with…

A: The

Q: The element 1s22s22p63s23p64s23d104p65s2 is    a. a halogen   b. an alkali metal   c. an…

A: Since the electronic configuration of the element given is   1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2

Q: Identify the element 127X. 53 Express your answer as a chemical symbol. ΑΣφ DA chemical reaction…

A: Please find the below attachment.

Q: 4. Propose an explanation for the observation that elements with even atomic numbers are more…

A: "Since there are multiple questions and it is not mentioned that which one has to be solved so I am…

Q: Archeologists discover a gold crown in an ancient tomb. When they place the crown in a tub of water…

A: Given: Volume of water displaced by crown = 941.2 ml Density of gold = 19.3 g/ml Price of gold = $…

Q: The element lithium has an atomic weight of 6.941 amu. There are only two isotopes of lithium, ©Li…

A:

Q: 00 %23 3. alt b. C. %3D d 7. 9. 5. 4 %24 2. # permitted the direct measurement of electrostatic…

A: Experiment were carried out in which a beam of cathode rays was first bent by a magnetic field and…

Q: A student prepared three nickel samples in the lab but forgot to label them. The samples that were…

A:

Q: 5 Elements are -  1) Sodium. 2) potassium 3) calcium 4) magnesium 5)lithium  Rank them from 1…

A: A question based on biological importance of chemical elements that is to be accomplished.

Q: Which one of the following particle has the smallest size? Na* B Mg2+ C Ne D F E 02-

A: Given species: Na+ Mg2+ Ne F- O2- We have to find the particle that has the smallest size.

Q: uncertainty of velocity of a neutron for which the uncertainty in position is 5.00 x 102 pm. (answer…

A: Mass of Neutron(m)= =1.675×10-27 Kg Uncertainty in position (□X) = 5.00×102 pm = 5.00×102×10-12 =…

Q: 7.95 x 10^18 electrons run through a given wire per second. What is the total mass, in grams, of…

A: Given: The number of electrons passing through the wire in 1 second = 7.95×1018 The mass of 1…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.