![]() ![]() Are all atoms the same?Įverything in this world are matter and comprises of atoms. As a result, elements in the same group often display similar properties and reactivity. The elements in each group have the same number of valence electrons. What do all atoms in the same group have in common? This is why different atoms of the same element can have different atomic masses. Was this answer helpful? What do all atoms of the same element have in common quizlet?Ītoms of the same element all have the same number of protons but they can have different numbers of neutrons. Different mass number will have different number of neutrons. But they have same or different mass numbers (like that for isotopes). ![]() The most common carbon atoms have six protons and six neutrons in their nuclei.What are always the same for atoms of the same elements?Ītoms of the same element have the same atomic number so the number of protons (and electrons) are same. These atoms are called isotopes and are introduced in next section.
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