Type the correct answer in each box to complete the table. Use numerals instead of words. Determine the least common multiple of the charges for each combination of elements in the table. Ignore the plus (+) and minus (−) signs of the charges and just enter numerals. The first row is completed for you. chlorine (Cl) oxygen (O) nitrogen (N) lithium (Li) 1 2 3 magnesium (Mg) aluminum (Al)

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explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

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since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.  

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.

answer: atomic mass was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

explanation:

originally atomic mass was used to arrange elements on the periodic table from left to right in a row. each column then shows similar properties of elements of a group.

in modern periodic table, the atoms are arranged in increasing atomic number. as atomic number represents the number of protons in an atom which is unique for every atom.