What is the name of the element with 7 protons and 7 neutrons? Which element has no stable isotopes: 82Pb, 27Co, 51Sb, or 90Th? What is the symbol of the element with 4d^4? What are two elements, next to each other, that have decreasing atomic masses?
We present a simple method for the quantitative analysis of light elements, H, C, N and O, in thin, self-supporting low Z films with MeV protons in one run. Proton-proton scattering is utilized for the detection of hydrogen and backscattered protons are simultaneously analyzed for detecting ...
What is the atomic number of an element with 6 protons, 7 neutrons, and 6 electrons? A. 7 B. 13 C. 6 D. 12 What nuclide has 27 protons and 33 neutrons? Which of the following is an indicator of the presence of starch? a. iodine b. oxygen c. carbon dioxide d. water ...
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Electrical particle accelerators for electrons, protons, etc. (excl. ion implanters for doping semiconductor materials) Commodity code: 85 43 10 0085431000 Electrical machines and apparatus, having individual functions, n.e.s. in chapter 85 Commodity code: 85 43 70854370 Electric...
What is the electron configuration of the element with 27 protons? Which of the elements in the following periodic table are halogens? What is the chemical symbol of the element found in the 4th family and 5th period of the periodic table?
Mass number of the element (p+n)=81 Let the number of protons =x :. Number of neutrons present =x+(31.7)/(100) xx x =1.317x x+1.317 x=81 or 2.317x=81 x=(81)/(2.317)=35 The element with 35 electrons (or Z=35) is bromine (Br)
2 (a) Define the term isotope.Atoms of the same element/atoms with same proton numberyatoms with same atomic number different neutron number/nucleon number/miass number(b) The table gives information about four particles. A, B. C and D Complete the table.The first line has been done for...
Which element is a noble gas with 18 protons in the nucleus? What is the element based on its electron configuration (shown below)? 1s2 2s2 2p6 3s2 3p5 An atom of an element has the following groundstate configuration: (Kr)4d^105s^25p^b. a. If the element is in Group 6A, what...
The fifth tank brigade moved in with 20 units. (i.e., 20 tanks) Element (chemistry) Any one of the simplest chemical substances that cannot be decomposed in a chemical reaction or by any chemical means and made up of atoms all having the same number of protons. Unit (commerce) An item...