Which observation by Ernest Rutherford and his students refuted the plum pudding model?   A:alpha particle attraction B:electron deflection C:electron attraction D:alpha particle deflection

Q: "An neutral atom of 94Be has_____ protons, ____ electrons, and _____ neutrons."     4, 5, 4…

A: The atom given is 94Be.

Q: Which subatomic particle has a negative (-1) charge?

A: There are total 3 sub-atomic particles which are present in any atom.

Q: Determine the number of protons, number of electrons, number of neutrons, atomic number, and mass…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Given the only naturally occurring isotope of phosphorus is P-31, determine its mass from the…

A: The mass of phosphorus-31 from the periodic table.

Q: Using the data below, determine the missing mass of (19 9)F (atomic weight = 18.9984):  mass of…

A: For given element 9F19 we have to calculate out the missing mass of element upto four decimal using…

Q: Use the notation to represent a tin ion having the same number of electrons as anatom of the isotope…

A: Isotopes: Those species having same number of electron and proton but different number of neutron.…

Q: 23, and so on Which of the following was one of Empedocles elements (from ancient Greece)? Water O…

A: According to the greek philosopher , Empedocles , all matters was generally composed from four…

Q: Only two isotopes of Sb (antimony, Z=51) are stable. Pick the most likely stable isotope from the…

A:

Q: What letters are used to designate atomic number and mass number in isotopic notation of atoms?

A: There are different symbols are used to exhibit atomic Number and mass number of atoms. Atomic…

Q: Complete the following table for an isotopically labeled atom or ion: Complete the following table…

A: Given incomplete table is :  Complete the given table ?  Number of protons (p) = Atomic number (Z)…

Q: 4. Define an atom – 5. Label each of the parts of the atom on the diagram to the right. 6. Fill in…

A: An atom is the smallest unit of ordinary matter that forms a chemical element. Every solid, liquid,…

Q: Describe the structure of a typical atom. Identify where each subatomic particle is located.

A: An atom is composed of two regions: the nucleus, which contains protons and neutrons and is in the…

Q: In Rutherford’s gold foil experiment most of the alpha particles went straight through the gold…

A: Conclusion of Rutherford’s gold foil experiment: a) Most of the α-particles pass through the gold…

Q: Consider a sample of antimony collected from a different solar system. The sample contained 45.8…

A:

Q: Dalton theorized that matter is made of tiny invisible particles called atoms. in what way did the…

A: The most significant of all the Dalton’s investigations were related with the atomic theory.…

Q: Rutherford's Gold Foil experiment gave evidence that an atom is mostly empty space. a True b…

A:

Q: Rank the atoms represented by the following sets of subatomic particles from smallest to largest in…

A: The atomic number of an atom is the number of protons present in the atom. For a neutral atom, the…

Q: To the right is a representation of 50 atoms of a fictitious element called westmontium (Wt). The…

A: No. of atoms of each isotope are as follows: Wt-296 (red) 36 Wt-297 (blue) 2 Wt-298 (green)…

Q: an isotope that has the atomic number 53, atomic mass 127 and a charge of "-1" determine the number…

A: Elements have same atomic number but different mass number is known as Isotopes

Q: Which scientist used alpha particles to determine that atoms are mostly empty space? Rutherford…

A: Scientist Rutherford used alpha particle to determine that atom are mostly empty spaced. So option…

Q: Two elements in the same group on the periodic table of the elements are most similar in their…

A: This question is related to periodic table. Periodic table is the arrangement of elements in rows…

Q: If the heaviest isotope (A) is more abundant and the other isotopes (B & C) were less abundant,…

A: The periodic table's atomic mass is the average weight of all its isotopes. Average atomic mass of…

Q: Which scientist developed the "plum pudding" model of the atom? Spherical cloud ´of positive charge…

A: J.J. Thomson's experiments with cathode ray tubes showed that all atoms contain tiny negatively…

Q: Which idea came out of Rutherford’s gold foil experiment?a) Atoms contain protons and neutrons.b)…

A: Rutherford’s gold foil experiment is also called as Planetary model of the atom in which he told…

Q: Which scientist developed a model that is still used today to show the number of electrons in each…

A: Bohr model explains an atom as a small and positively charged nucleus surrounded by electrons. These…

Q: Select the two isotopes of nitrogen-15. carbon-13 O phosphorus-15 N-16 F2 - 15 O-15

A:

Q: using what you can recall from this unit write one or two short paragraphs decribing ernest…

A: In this question, we have to write one or two short paragraphs decribing ernest rutherfords atomic…

Q: An atom with an atomic number of 6 contains 26 subatomic particles. How many of these subatomic…

A: Subatomic particles like electron, proton, and neutron are present in an atom. Also, more subatomic…

Q: Identify the element represented by each nucleus A through E as a metal, a nonmetal, or a metalloid.…

A: Given : symbol of proton and neutron

Q: Write the symbolic notation of an isotope of an element having 8 protons, 8 electrons, and 9…

A: