Chemistry
Chemistry, 05.11.2019 07:31, aubriebv2020

Which is an element? air dioxide description

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Geography, 07.07.2019 15:30, viktoria1198zz
In your own words, explain what the atomic number and atomic mass of an element represent. use an example of an element if it you with your description. describe how the atomic number and atomic mass of an element are calculated. take a look at tyler's response to one of these prompts. the element i chose contains an atomic number of 30 and an atomic mass of 65. this means the element has 30 protons, 35 neutrons, and 30 electrons. what element did tyler post about?
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Chemistry, 30.07.2019 10:20, linnybear300
Answer fast now identify the following substances by using the words atom, element, molecule and/or compound to describe each substance and tell why the description applies. neon (ne): carbon dioxide (co2): water (h2o): hydrogen (h2):
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Chemistry, 21.09.2019 18:30, jsavagejsavage9216
Read each description in the first column of the table below. if any chemical element with atomic number of 92 or less matches the description, check yes and enter the chemical symbol of an element that matches. otherwise check no in the second column. descriptiondoes any element match the description? if you checked yes, give the symbol of an element that matches.an element in period 3 and group 2a.yes
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