q1 chemistry: u2l8 mastery quiz 1 practice\ndo now:\nuse the data table below to answer questions 1 - 4…

q1 chemistry: u2l8 mastery quiz 1 practice\ndo now:\nuse the data table below to answer questions 1 - 4. hint: create another row for charge and mass number.\n| atom | a | b | c | d |\n| protons | 7 | 11 | 7 | 11 |\n| neutrons | 10 | 10 | 11 | 11 |\n| electrons | 7 | 11 | 7 | 10 |\n1. **which atoms has a neutral charge? select all that apply\n(a) atom a (b) atom b (c) atom c (d) atom d\n2. **which atoms has a net positive charge? select all that apply\n(a) atom a (b) atom b (c) atom c (d) atom d\n3. *select the identity of atom c\n(a) nitrogen - 7\n(b) nitrogen - 18\n(c) sodium - 11\n(d) sodium - 21\n4. **examine the atomic symbol for carbon below. annotate the symbol with what each number stands for and calculate....\n(a) atomic number = __________\n(b) mass number = __________\n(c) number of neutrons = __________\n12 6 c

q1 chemistry: u2l8 mastery quiz 1 practice\ndo now:\nuse the data table below to answer questions 1 - 4. hint: create another row for charge and mass number.\n| atom | a | b | c | d |\n| protons | 7 | 11 | 7 | 11 |\n| neutrons | 10 | 10 | 11 | 11 |\n| electrons | 7 | 11 | 7 | 10 |\n1. **which atoms has a neutral charge? select all that apply\n(a) atom a (b) atom b (c) atom c (d) atom d\n2. **which atoms has a net positive charge? select all that apply\n(a) atom a (b) atom b (c) atom c (d) atom d\n3. *select the identity of atom c\n(a) nitrogen - 7\n(b) nitrogen - 18\n(c) sodium - 11\n(d) sodium - 21\n4. **examine the atomic symbol for carbon below. annotate the symbol with what each number stands for and calculate....\n(a) atomic number = __________\n(b) mass number = __________\n(c) number of neutrons = __________\n12 6 c

Answer

Explanation:

Step1: Determine neutral - charged atoms

A neutral atom has equal number of protons and electrons. Atom A has 7 protons and 7 electrons, Atom B has 11 protons and 11 electrons. So Atom A and Atom B are neutral.

Step2: Determine positively - charged atoms

A positively - charged atom has more protons than electrons. Atom D has 11 protons and 10 electrons, so it has a net positive charge.

Step3: Identify Atom C

The atomic number is the number of protons. Atom C has 7 protons, so it is nitrogen. The mass number is the sum of protons and neutrons, (7 + 11=18), so it is Nitrogen - 18.

Step4: Analyze carbon symbol

The bottom number in the atomic symbol (^{12}_{6}C) is the atomic number, which is 6. The top number is the mass number, which is 12. The number of neutrons is mass number - atomic number, (12−6 = 6).

Answer:

  1. A. Atom A, B. Atom B
  2. D. Atom D
  3. B. Nitrogen - 18
  4. (A) Atomic number = 6 (B) Mass number = 12 (C) Number of neutrons = 6