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1. How is 120,700 written in scientific notation? O A. 120.7.10 O 8.12.07.10 O C. 1.207.105...
4. An ion of iron has an 26 protons, 30 neutrons, and 23 electrons. What are its atomic number, atomic mass, and ne...
4. An ion of iron has an 26 protons, 30 neutrons, and 23 electrons. What are its atomic number, atomic mass, and net charge? OA atomic number 26, atomic mass 56, net charge 3+ O B. atomic number 26, atomic mass 56, net charge 3 Oc atomic number 30, atomic mass 56, net charge 3+ ODatomic number 56, atomic mass 26, net charge 3-
3. The electron dot diagram for a neutral atom of chlorine (atomic number 17) is shown...
3. The electron dot diagram for a neutral atom of chlorine (atomic number 17) is shown below. Which of the following symbols represents a chlorine ion with a stable arrangement of eight valence electrons? CI: O A 251 O B.2012 O c. 5c1 Op.
1- an atom has the following chemical symbol: 114Cd a- how many protons does this atom...
1- an atom has the following chemical symbol: 114Cd a- how many protons does this atom have? b- how many neutrons does this atom have? c- how many electrons does this atom have? 2- an ion has 33 protons, 41 neutrons, and 36 electrons a- what is the mass number of this atom? b- what is the symbol for this ion? enter both mass and the atomic number 3- which of these ions has the same number of electrons as...
Atoms and Isotopes 1 Activity: Atoms and Isotopes Why? Atoms and isotopes are identified by the...
Atoms and Isotopes 1 Activity: Atoms and Isotopes Why? Atoms and isotopes are identified by the numbers of protons, electrons, and neutrons that they contain The number of protons, electrons, and neutrons in atoms determines the chemical properties of the elements .A knowledge of the number of protons and electrons in an atom will help you understand how atoms combine to form molecules Identify the composition of atoms in terms of protons, neutrons, and electrons Use atomic symbols to represent...
64Chapter 7 Atomic Number and Atomie Mass The Periodie Table of Elements contains th and atomie...
64Chapter 7 Atomic Number and Atomie Mass The Periodie Table of Elements contains th and atomie wumber of protons, e atomic m number of each element. These numbbers indicate the neutrons, and electrons in each element's basic wtructure Each aquare in the Periodic Table represents an element There are two numbers in each square 3 Alomic Number The smaller number at the top of the box is the atomic number The number at the bottom of the box is the...
17. Identify the elements that have the following electron arrangements: b. 2,8,6 а. 2,4 c. 2,8,8...
17. Identify the elements that have the following electron arrangements: b. 2,8,6 а. 2,4 c. 2,8,8 d. 2,1 f. 2,8, е. 2,8 g. 2,8,8,2 18. Write the group number and draw the electron-dot symbol for each of the following elements: a. sulfur b. nitrogen c. calcium d. sodium 19. The atomic number of an atom is equal to the number of A) neutrons plus protons B) nuclei C) electrons plus protons E) neutrons D) protons 20. The number of neutrons...
1. (2 pts) Given the name or symbol for an element and its mass#, Fill in...
1. (2 pts) Given the name or symbol for an element and its mass#, Fill in the table: Element # protons # neutrons # electrons 87Rb+ 128Te-2 2. (3 pts) Write the correct symbol and charge for the following: An atom with 47 protons, mass number 107, and 46 electrons. An atom with 2 more electrons than protons, mass number 80, and 46 neutrons. Write the atomic symbol for the element whose ion has a 2- charge, has 20 more...
The atomic number of lithium is 3. How many neutrons does an atom of lithium have...
The atomic number of lithium is 3. How many neutrons does an atom of lithium have if it is represented by the symbol shown below? 1. 7Li O A. 2 neutrons O B. 13 neutrons O C.4 neutrons O D.7 neutrons
IPC homework
An ion of iron has an 26 protons, 30 neutrons, and 23 electrons. What are its atomic number, atomic mass, and net charge?
25. Consider the elements aluminum and oxygen. aluminum охудеn Identify each as a metal or a...
25. Consider the elements aluminum and oxygen. aluminum охудеn Identify each as a metal or a nonmetal. State the number of valence electrons for each, State the number of electrons that must be lost or gained for each to achieve an octet. Write the symbol, including its ionic charge, and type of each resulting ion. 26. Which of the following pairs of elements are likely to form an ionic compound? Why? Yes/No Why? lithium and chlorine Oxygen and bromine potassium...
4. An ion of iron has an 26 protons, 30 neutrons, and 23 electrons. What are its atomic number, atomic mass, and net charge? OA atomic number 26, atomic mass 56, net charge 3+ O B. atomic number 26, atomic mass 56, net charge 3 Oc atomic number 30, atomic mass 56, net charge 3+ ODatomic number 56, atomic mass 26, net charge 3-
3. The electron dot diagram for a neutral atom of chlorine (atomic number 17) is shown below. Which of the following symbols represents a chlorine ion with a stable arrangement of eight valence electrons? CI: O A 251 O B.2012 O c. 5c1 Op.
Atoms and Isotopes 1 Activity: Atoms and Isotopes Why? Atoms and isotopes are identified by the numbers of protons, electrons, and neutrons that they contain The number of protons, electrons, and neutrons in atoms determines the chemical properties of the elements .A knowledge of the number of protons and electrons in an atom will help you understand how atoms combine to form molecules Identify the composition of atoms in terms of protons, neutrons, and electrons Use atomic symbols to represent...
64Chapter 7 Atomic Number and Atomie Mass The Periodie Table of Elements contains th and atomie wumber of protons, e atomic m number of each element. These numbbers indicate the neutrons, and electrons in each element's basic wtructure Each aquare in the Periodic Table represents an element There are two numbers in each square 3 Alomic Number The smaller number at the top of the box is the atomic number The number at the bottom of the box is the...
17. Identify the elements that have the following electron arrangements: b. 2,8,6 а. 2,4 c. 2,8,8 d. 2,1 f. 2,8, е. 2,8 g. 2,8,8,2 18. Write the group number and draw the electron-dot symbol for each of the following elements: a. sulfur b. nitrogen c. calcium d. sodium 19. The atomic number of an atom is equal to the number of A) neutrons plus protons B) nuclei C) electrons plus protons E) neutrons D) protons 20. The number of neutrons...
The atomic number of lithium is 3. How many neutrons does an atom of lithium have if it is represented by the symbol shown below? 1. 7Li O A. 2 neutrons O B. 13 neutrons O C.4 neutrons O D.7 neutrons
25. Consider the elements aluminum and oxygen. aluminum охудеn Identify each as a metal or a nonmetal. State the number of valence electrons for each, State the number of electrons that must be lost or gained for each to achieve an octet. Write the symbol, including its ionic charge, and type of each resulting ion. 26. Which of the following pairs of elements are likely to form an ionic compound? Why? Yes/No Why? lithium and chlorine Oxygen and bromine potassium...
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