QuestionIdentify the element with 42 neutrons, 36 protons, and 36 electrons. Find the symbol, mass number, and charge.
Studdy Solution
STEP 1
Assumptions1. The atom or ion has42 neutrons. The atom or ion has36 protons3. The atom or ion has36 electrons
STEP 2
The element symbol is determined by the number of protons, also known as the atomic number. Each element has a unique atomic number. In this case, the atomic number is36.
STEP 3
We can look up the atomic number in the periodic table to find the corresponding element. The element with atomic number36 is Krypton, symbolized as Kr.
STEP 4
The mass number of an atom or ion is the sum of the number of protons and neutrons. We can calculate this as follows
STEP 5
Plug in the given values for the number of protons and neutrons to calculate the mass number.
STEP 6
Calculate the mass number.
STEP 7
The charge of an atom or ion is determined by the difference between the number of protons and electrons. If the number of protons and electrons is equal, the charge is zero. If there are more protons than electrons, the charge is positive. If there are more electrons than protons, the charge is negative. We can calculate this as follows
STEP 8
Plug in the given values for the number of protons and electrons to calculate the charge.
STEP 9
Calculate the charge.
So, the element symbol is Kr, the mass number is78, and the charge is.
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