![]() This cookie is set by GDPR Cookie Consent plugin. These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly. In the notation 107 Ag 47, 107 represents the atomic number and 47 represents the atomic mass of silver. It is now known that Aristotle named atoms “atoms.” In a neutral atom, the number of protons is equal to the number of neutrons. Is the number of protons equal to the mass of silver?ĭalton hypothesized that atoms are indivisible and that all atoms of an element are identical. ![]() In a neutral atom, the number of protons is equal to the number of neutrons. Is the number of protons equal to the atomic mass? Which is the correct chemical symbol for this atom? The atomic number of an element is the total number of which particles in the nucleus? What does the number 84 in the name krypton-84 represent? Which of the following statements is NOT true? Which of the following is correct concerning subatomic particles? Which is the correct chemical symbol for this atom?Īn atom has 23 protons and 29 neutrons. That means it has 33 protons in its nucleus and 33 electrons buzzing around the nucleus, when it is uncharged. How many electrons are in arsenic atom?Īrsenic has an atomic number of 33. What element has 32 protons and 41 neutrons? In a neutral atom, the number of positively charged protons in the nucleus is equal to the number of orbiting electrons. If you add or subtract a neutron from the nucleus, you create a new isotope of the same element you started with. If you add or subtract a proton from the nucleus, you create a new element. What happens when you add protons and neutrons? Classified as a transition metal, Molybdenum is a solid at room temperature. Molybdenum is a chemical element with symbol Mo and atomic number 42. What is the name of an atom with 42 protons? So if molybdenum has 42 protons and 42 electrons, then why is the atomic mass (composed of only protons and neutrons as we said before) 95.94 instead of (42 protons + 42 electrons = ) 84? This is due to something called an isotope. The nucleus of a neutral atom has an equal number of protons, neutrons, and electrons. Which is the correct notation for the atom with 42 protons and 49 neutrons?
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