Guide Questions:
1. What is the basis of determining the number of protons, electrons, and neutrons in a given atom?
2. How do you calculate the mass number?
3. Given the atomic number and mass number of an atom, how will you compute the number of neutrons?
plssss paki sagutan namn po plss
1. What is the basis of determining the number of protons, electrons, and neutrons in a given atom?
2. How do you calculate the mass number?
3. Given the atomic number and mass number of an atom, how will you compute the number of neutrons?
plssss paki sagutan namn po plss
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Answer:
.
Explanation:
1.) The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus.
Measurement of the atomic mass gives you the mass of the nucleus, which is directly related to the total number of nucleons (protons and neutrons). And chemical properties of the atom give information about the structure of its electron shells, from that you may extract the number of electrons. The number of protons must be equal to the number of electrons, because atoms are electrically neutral. So you can determine all three numbers.
2.) the sum of the numbers of protons and neutrons in the nucleus is called the mass number. This is because each proton and each neutron weigh one atomic mass unit (amu). By adding together the number of protons and neutrons and multiplying by 1 amu, you can calculate the mass of the number.
3.) You can simply subtract the number of protons, or atomic number, from the mass number.
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