Question 2 3 pts Assume an isotope of the hypothetical element bulldogium, Bd. 1. Bd, is...
The hypothetical element Q has an atomic weight of 124.8 AMU in the periodic table and only has two stable isotopes. Q isotope 1 has an abundance of 55.83 % and an isotopic mass of 122.16 AMU. What is the mass of Q isotope in AMU ? Round 3 decimal places.
1.The mass spectrum of a hypothetical element shows that 71.51% of the atoms have a mass of 27.977 u, 3.052% have a mass of 28.976 u, and the remaining have a mass of 29.974 u. Calculate the average atomic mass of this element (in units of u). (Use 4 Sig. Fig. Don't round until end.) 2.Bromine occurs naturally as two isotopes, one with a mass of 78.918 u and the other with a mass of 80.916 u. Suppose the average...
Question 3 1 pts The chemical reactivity of an element is designated as Question 1 1 pts if it readily combines to form compounds. If an element does not tend to react chemically, it is designated as The relative activity of elements can be determined by analyzing the ease with which similar compounds are into their component elements Dreuinse Nevt Question 8 1 pts Next The group of elements in the periodic table that are not very (Select] chemically reactive...
8. An element has two naturally occurring isotopes. Isotope 1 has a mass of 120.9038 amu and a relative abundance of 57.4%. Isotope 2 has a mass of 122.9042 amu. Find the atomic mass of this element and, by comparison to the periodic table, identify it.
1. A certain element has 6 protons in its atom. One atom of this element needs _____ electrons in order to have no net charge. 2. Gold has the symbol Au.Located this element on the periodic table above and then identify its atomic number. The atomic number for this element is ____. 3. If you added one more proton to an atom of gold, then what element would it become? A- Silver (Ag) B- Platinum (Pt) C- Mercury (Hg) 4....
1. "Quackism" is a recently discovered element with the symbol Q. It is located in group 7A of the periodic table, in the same group as bromine, chlorine and iodine. How many valence electrons are associated with QO3- ? (I call this e- math in the lecture videos.) Apart from one atom of quackism, the ion also contains 3 oxygen atoms. Also, please take note of the very small negative sign on the formula of the compound. 2. "Quackism" is...
Part A What is the relative atomic mass of a hypothetical element that consists of the following isotopes in the indicated natural abundances? Isotope Isotopic mass (amu) Relative abundance (%) 1 81.9 12.2 2 84.9 15.0 3 88.9 72.8 Express your answer to three significant figures and include the appropriate units. Part B What is the relative atomic mass of the element that consists of the following isotopes in the indicated natural abundances? Isotope Isotopic mass (amu) Relative abundance (%)...
Question 36 1 pts Which of the following is the most naturally abundant isotope of Nitrogen (hint: check the periodic table)? O 14 N 8 O 15 7 N O 14 7 N No answer text provided. O 13 7 N
Question 11 8.75 pts An element with an atomic mass of 57 has an isotope with an atomic of mass 58. The source of this additional mass is O an extra neutron O gaining an electron an extra Proton loss of an electron gaining an extra proton and electron Question 12 8.75 pts the magnetic force on a charged particle depends on O mass of the particle density of the particle spin of the particle velocity of the particle
Drive 11:24 AM 7 91% 2. (10 pts total) A new element with three isotopes is discovered on Planet X. A mass spectrometer was used to obtain the following information for this element. Isotope Abundance Mass (amu) 159x 30.60% 159.37 163 ? 162.79 53.61% 163.92 164 X A. (4 pts) What is the average atomic mass for element X? < > B. (2 pts) If you were able to select a single atom of element X, what would its mass...