Chemistry
Chemistry, 14.07.2019 05:20, isaactatep808nj

How many protons are in florine whose atomic number is 9 and atomic mass is 19? * 9 10 19 28

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Chemistry, 29.08.2019 16:10, laceytoyne72
2) what is the name of a group of atoms that have the same atomic number but different atomic mass? 3) fluorine’s atomic number is 9 and its atomic mass is 19. how many neutrons does fluorine have? 4). an uncharged atom of boron has an atomic number of 5 and an atomic mass of 11. how many protons does boron have? 5). how can you determine the approximate mass of an atom, in atomic mass units? 6). atoms with the same number of protons but with different electrical charges are 7). in salt, what is the nature of the bond between sodium and chloride? 8). an ionic bond involves 9). the innermost electron shell of an atom can hold up to how many electrons? (the shell closest to the nucleus) 10). what determines the types of chemical reactions or bonds that an atom participates in?
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Chemistry, 22.09.2019 09:00, annie8348
Which option describes a similarity and a difference between isotopes of an element? a) same atomic number; different number of protons b) same number of protons; different atomic number c) same atomic number; different mass number d) same mass number; different atomic number e) same number of neutrons; same number of protons
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Physics, 02.10.2019 11:00, krocker58
1. what information does the atomic mass of an element provide? a.the sum of electrons and protons in atom b.the difference between the number of protons an electrons c.the numbers of isotopes d.the number of protons and neutrons in a item 2.how do scientist determine the number of neutrons in an item? a.they find the number of protons b.they add the umber of electrons to protons c.they divide the atomic mass of two d.they subtract the atomic number from the atomic mass 3.how many protons are in a element with an atomic number of 8 and a mass number of 18? a.8 b.18 c.10 d.3 4.two atoms are that are isotopes of one number must have the same number as what? a.neutrons b.atomic mass c.protons d.all particles 5.the modern periodic table is organized by number? a.developing b.decreasing c.reducing d.increasing if all questions are answers correctly i will be giving out a huge prize to that person so they could get pro and receive 500 points -your friend queen
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How many protons are in florine whose atomic number is 9 and atomic mass is 19? * 9 10 19 28...

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