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## which element in period 2 has the most mass

The element in Period 2 with most mass is clearly the element with the highest atomic number, Z, and that is Ne, Z=10, 21.08*g*mol^-1. it ends with neon, whose atomic mass is "20.18 g"*"mol"^-1. We have experienced tutors and assignment experts from all over the world for all subjects. Chemical elements listed by atomic mass The elements of the periodic table sorted by … With the exception of neon, period 2 elements react in order to achieve a stable "octet" of electrons in their valence shells. This list contains the 118 elements of chemistry. Our primary goal is to make sure that our customers are satisfied with the service. Yours all information is private and confidential; it is not shared with any other party. Why are atomic masses of most of the elements fractional. Which temperature conversion is correct? Atomic Number of Helium. Chemical elements listed by atomic mass The elemenents of the periodic table sorted by atomic mass. answer choices ... an element with the same atomic mass. This is a list of chemical elements, sorted by atomic mass (or most stable isotope) and … Get \$25 Free For Your Homework Writing Help, What solution turns litmus paper blue? Neon element in the periodic table period 2 has most mass.It has atomic mass of 20.17.It is colorless and odorless. Acidic B. Neon element in the periodic table period 2 has most mass.It has atomic mass of 20.17.It is colorless and odorless. Period 2 elements involve the 2s and 2p orbitals.They include the biologically most essential elements besides hydrogen: carbon, nitrogen, and oxygen. Its atomic number is 20 and symbol is Ca. To two decimal places, calcium is 1.00 and strontium is 0.95. Argon _____. 4098 views 7. The second Period begins with lithium, whose atomic mass is "6.94 g"*"mol"^-1. If you are thinking that can someone please write my research paper then get in contact with us today and avail the best writing help you could ask for. calcium has 24 isotopes How do atomic mass and atomic weight differ? Calculate the atomic mass of element Y given the abundance Y-63 is 69.17% Elements in the same period have similar properties. Calcium is an element in the second group and third period of periodic table. A period is a horizontal row of the periodic table. With all our writing services we make sure to carry out a great deal of research before putting words on paper. It is the eighth most abundant element in the Earth's crust and the ninth in the known universe as a whole. Magnesium is the fourth most common element in the Earth as a whole (behind iron, oxygen and silicon), making up 13% of the planet's mass and a large fraction of the planet's mantle. Scan our work with all plagiarism checking tools, Result will always be 0%. Interpret data A company plans to make an electronic device. Calcium is the fifth most abundant element by mass (3.4%) in both the Earth's crust and in seawater. Therefore the mass of most helium atoms is 4 atomic mass units ($$2 \: \text{amu}$$ for the protons + $$2 \: \text{amu}$$ for the neutrons). Which of the following statements is true? There are seven periods in the periodic table, with each one beginning at the far left. Period 1, which only contains two elements (hydrogen and helium) is too small to draw any conclusive trends from it, especially because the two elements behave nothing like other s-block elements. (c) ‘B’ belongs to III group, has 3 valence electrons, it can lose 3 electrons to … A new period begins when a new principal energy level begins filling with electrons. Neon is an exception because, being a group 18 (Noble Gas) element, it already has a stable electronic configuration. So, no one will know that you have taken help for your Academic paper from us. Which Group 15 (VA) element has the most metallic character? Element 43 (technetium), element 61 (promethium), and most of the elements with atomic number 84 (polonium) and higher have their atomic mass given in square brackets. Periods have different lengths; the first period has only 2 elements (hydrogen and helium), while the second and third periods have 8 elements each. Lithium (Li) is the lightest metal and the least dense solid element. TutorsOnSpot.com. How do you calculate the atomic mass of carbon? The elements of Period 2 have the same (1) atomic mass (2) atomic number (3) number of occupied principle energy levels (4) ... (1A), and element Y is in Group 16 (V1A).