5. The chart below lists 4 different "atoms" (A, B, C, D). Tell me what you know about each of them, comparing A to B, then A to C and then A to D. Remember to use Atom "A" as the reference and consider how "B" is different from "A". (Hint: using the material in your book, when an atom gains or loses electrons, what does it become?) Then look at how "A" and "C" are similar and different and then "A" and "D". A B 12 P C 12P 12N 12N 12e 10e "P" indicates the number of protons "N" indicates the number of neutrons "e" indicates the number of electrons 12P 13N 12e D 11P 12N 11e

37. Which of the following statements is not correct? A. A cation is formed when an atom loses one or more electrons. B. An anion is formed when an atom gains one or more electrons. 1 mole of neon, Ne, has a mass of 6.02 x 1023 g. 1 mole of chromium, Cr, has a mass of 52.0 g.

ymbor 3. Are the following statements regarding Dalton's atomic theory true or false? a. (True/False) All nitrogen atoms are identical. b. (True/False) Sodium and chlorine atoms combine in a 1:1 ratio to form sodium chloride (salt) Are the following statements regarding electrons true or false? a. (True/False) Electrons have a charge of 1+. b. (True/False) Electrons are found in the nucleus of the atom. 4. 5. Are the following statement regarding protons true or false? a. (TruelFalse) Protons have the same mass as electrons. b.True/False) Protons are positively charged. C. (True/False) Protons are found in the nucleus of the atom. What is the name and number of protons for each of the following atoms? Name 6. Number of Protons а. К b. Li С. Mn

An atom has a diameter of 2.50 Å and the nucleus of that atom has a diameter of 6.00 x 10-5 Å. Determine the fraction of the volume of the atom that is taken up by the nucleus. Assume the atom and the nucleus are a sphere. fraction of atomic volume: Calculate the density of a proton, given that the mass of a proton is 1.0073 amu and the diameter of a proton is 1.69 × 10-¹5 density: m. g/cm³

Identify the element represented by each nucleus A through E as a metal, a nonmetal, or a metalloid. In the drawings, red spheres denote protons and gray spheres denote neutrons. Proton Neutron Drag the appropriate items to their respective bins. Metal BIBO 103 W2A1....docx C A 5,316 B 11 333 A Nonmetal InstallScreenRe....dmg 000 C Metalloid tv N MacBook Air F7 Reset A Help O F8 P W F9 F10

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