4, Cathode ray experiments permitted Thomson to calculate:  Group of answer choices a, mass-to-charge ratio of the particles composing the cathode ray b, the mass of the atom c, the charge of the electron d, the mass of the electron

1. Describe briefly, indicating the scientist responsible, experiments that gave the following evida,riee7RT¬the model of an atom:a) The atom consists of a very tiny, thickly dense positively charged nucleus, surrounded by a negatively charged electron cloud.b) The nucleus contains a specific number of protons, positively charged particles that gives the atomic number.c) Neutrons together with the protons in the nucleus account for the atomic weight.

Please help me complete questions a , b , c ,d

8. A researcher wants to experiment with an element that reacts like phosphorus (P) but has a greater atomic mass. Which element should the researcher select for the experiment? Nitrogen (N) Arsenic (As) Sulfur (S) Silicon (Si) CLEAR ALL

Complete the table below, using the diagram of an atom shown at right. Properties of subatomic particles approximate name symbol charge (in multiples of e) mass location on diagram (amu) X 5 proton P 1.0 B 0 neutron n (choose one) A electron e- -1 0.0005 B

Chlorine-35 is one isotope of chlorine.  (35 is the mass number.)  Chlorine-37 is another isotope of chlorine.  How many protons and how many neutrons are in each isotope of chlorine?

4, How many protons, electrons, and neutrons contains an ion of  26Al3+ protons                             [ Select ]                          ["16", "13", "26", "10"]            electrons                             [ Select ]                          ["26", "13", "10", "16"]            neutrons                             [ Select ]                          ["10", "13", "16", "26"]                5, Calculate the atomic mass and identify the element. exact mass                            percent abundance 34.968852 amu                    75.77% 36.965903                             24.23%      Group of answer choices A, 50.94 amu; V B, 36.45 amu; Cl C, 35.967 amu; Cl D, 35.97 amu; element does not exist

In the following figure below, what is the'number of neutron, proton, electron, atomic number, mass number? 40 Са 20 Mass number =40, Atomic Number = 20, E 20, P 0, N 40 %3D O Mass number =40, Atomic Number = 20, E 20, P 20, N 20 Mass number =20, Atomic Number = 40, E 40, P 20, N 20 %3D O Mass number =20, Atomic Number = 40, E 20, P 20, N 20

Analyze the symbols that we present: identify: a) Isotope Pairs b) atoms that have the same number of neutrons c) Different atoms of the same mass number d) Determine in each case the number of electrons

1- For each of the following atoms, calculate the number of protons and neutrons in the nucleus and the number of electrons outside the nucleus (assume neutral atoms). element number of number of number of electrons mass number (A) symbol 126C protons (Z) neutrons 12 10 12 10 14 27 10 23,1Na 11 17 18 2- Calculate the atomic mass to four significant figures for carbon, given the following data: Isotope Exact Atomic Mass (amu) 12.00000 13.00335 Abundance in Nature (%) 98.89 1.110 12C 13C