What property of an atom determines which type of element it is? O Number of Proton plus Neutrons O Number of Neutrons O Number of Protons O Number of Electrons

Q: 17) Sho by "A" atoms. Nearest neighbors are separated by ro. A A 4 B A A w much energy is required…

A: Given, Structure of 7 atoms with B atoms in the middle surrounded by A atoms. Well depth for A-A…

Q: Fill in the nine gaps in this table. Element symbol Zn Protons 28 Neutrons 34…

A: in the neutral atom, no. of protons= no. of electron Mass no. = No. of proton + no. of neutron

Q: What is wrong with the model of a lithium atom and how should it be corrected?

A: I find two wrong things here. 1) The arrangement of protons and neutrons is wrong.  Protons are…

Q: Which particle will not be affected by the presence of an electric field?  a Alpha  b Beta+  c…

A: the correct solution is:d) NeutronNeutrons are electrically neutral debris, which means they haven't…

Q: The nucleus in an iron atom has a radius of about 4.0×10-15 m and contains 26 protons. (i) What is…

A: The electrostatic force between two charged particles is given by F=q1q24πε0r2 Charge on single…

Q: ELEMENT ATOMIC MASS NUMBER NUMBER Be S Pb U 4 14 35 9 28 35 65 183 207 PROTON ELECTRON NEUTRON…

A: Number of protons of a sample = Atomic Number of the element Number of electrons of a sample =…

Q: Given the following data, calculate the densities of a lithium-7 nucleus and a lithium-7 atom.…

A: The density of an object is given by the equation ρ=mVm is the massV is the volume A lithium nucleus…

Q: An element is a pure substance which cannot be broken down by chemical means, consisting of one kind…

A: Required :  What is an element.

Q: Label the 4 elements marked with red numbers in terms of the spherical coordinates (r,theta,phi). 3…

A:

Q: Fill in the nine gaps in this table. Element symbol K 19 7 Protons 16 Neutrons 20 18 16 Electrons 19…

A: Mass number is the total number of protons and neutrons in the nucleus.

Q: The value of A in the element symbol below determines the isotope of the atom.

A:

Rutherford's scattering experiment

Rutherford’s scattering experiment is also known as the gold foil experiment. This experiment disproved the plum pudding model of J.J. Thomson. In a gold foil experiment, high-energy alpha particles are made to strike a thin gold foil. The scattered alpha particles are detected using a detector. This experiment showed that the positive charge of the atom is at the center. Most of the atom’s mass is also confined to a small volume at the center. This region is known as the nucleus of the atom.