What element has 53 protons and 74 neutrons? What is the lightest particle of an atom? An atom has 75 protons, 74 electrons, and 112 neutrons. What is the charge of the atom? What element would it be if you added 2 protons and 2 electrons to carbon? (Be specific: i.e.: ion, ...
A variation of an element, has different number of neutrons, but same number of protons and electrons, is called what? What does an atom consist of? Which subparticle component of an atom can be changed but it still remains to be the same element? I. Electron II. ...
Protons and neutrons have a mass of 1.67 x 10-27 kg, and electrons have a mass of 9.11 x 10-31 kg. A uniform electric field can An object has eight million more electrons than protons. What is the net charge of the object? An object has eight million m...
aThe element X has three isotopes: X-221, X-220, and X-218, with masses 220.9, 220.0, and 218.1 amu. The relative abundances of these three isotopes are 74.22%, 12.78%, and 13.00%, respectively. Calculate the atomic mass of element X. 元素x有三同位素: X-221, X-220和X-218,与大量...
When electrons become “excited” and gain energy, then “relax” and return to their original shells, the atom emits a photon. The wavelength of the photon depends on how far the electron falls back toward the atom’s nucleus. These wavelengths are specific to each element. ...
An element has 13 electrons in its M shell and 1 electron in N shell i... 02:51 Match the column I with column II and mark the appropriate choice. 03:48 Which of the following quantum numbers are correct for the outermost e... 02:04 The configuration of the valence orbital of an ...
Consider the element Au (Atomic Mass = 197). How many protons, neutrons, and electrons does a neutral atom have? An element has an atomic number of 114 and an atomic mass of 285. How many protons, neutrons, and electrons does a neutral atom of this element have?
Every element has a unique atomic number. This is the number of protons in the nucleus of each atom. What is the atomic number of this helium atom? A neutral atom must have equal numbers of protons and electrons, so the atomic number of an element also gives ...
An atom is a thing; an element is a type of thing. An atom is a collection of protons, neutrons and electrons. A single, isolated atom in its neutral state has some number of protons, the same number of electrons and some number neutrons (about as many as protons for the lighter ...
2+8+7=17 electrons 3. Determine Atomic Number: - For a neutral atom, the number of electrons is equal to the number of protons. - Thus, the atomic number, which is the number of protons in the nucleus, is also 17. 4. Identify the Element: - Referring to the periodic table, ...