QUESTION 31 A substance composed of two or more elements in a fixed, definite proportion is O A. a homogeneous mixture O B. a heterogeneous mixture O C. a compound O D. a solution QUESTION 32 Bonds are made by sharing or transferring by the atoms. O A. protons OB. electrons O C. neutrons O D. photons QUESTION 33 Potassium (K) is a/an O A. noble gas O B. transition metal O C. alkali metal O D. alkaline earth metal

QUESTION 31 A substance composed of two or more elements in a fixed, definite proportion is O A. a homogeneous mixture O B. a heterogeneous mixture O C. a compound O D. a solution QUESTION 32 Bonds are made by sharing or transferring by the atoms. O A. protons OB. electrons O C. neutrons O D. photons QUESTION 33 Potassium (K) is a/an O A. noble gas O B. transition metal O C. alkali metal O D. alkaline earth metal

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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MCQ 37: Chemical elements contains only A. one type of atom B. two type of atom C. molecules D. ions
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Which of the following elements is NOT a noble gas at room temperature? a. chlorine b. oxygen c. neon d. argon e. nitrogen
16. Average atomic mass is different from mass number because... A. the average atomic mass describes the mass number of a single atom, but mass number describes the average of all exact masses among isotopes of an element. B. mass number describes the approximate mass of the nucleus of a single atom, but average atomic mass describes the weighted average of all the exact masses among isotopes of an element. C. mass number describes the exact mass of a single atom, but average atomic mass describes the average of all mass numbers. O D. mass number describes the approximate mass of the nucleus of a single atom, but average atomic mass describes the largest mass among isotopes of an element.
QUESTION 1 Ernest Rutherford concluded from experiments that they indicated nuclei of atoms are relatively O A. close together and negatively charged O B. far apart and positively charged OC. close together and neutral OD. far apart and negatively charged
A nitrogen ion, N3- has? A. 7 protons and 7 electrons B. 7 protons and 10 electrons C. 7 protons and 4 electrons D. 10 protons and 10 electrons
to complete a dot diagram for an ion ... Anions... A would not change its number of electrons B would lose all its valence electrons C would gain enough electrons to have a full eight
2. How many protons, neutrons and electrons are contained in each neutral element? 27 „Al a. b. 16 C.
Write the ion symbol for an atom with the given number of protons and electrons. a. 27 protons and 25 electrons b. 12 protons and 10 electrons
15. Which statement is true for cations? A. There are equal numbers of protons and electrons B. There are more protons than electrons. C. There are more electrons than protons. O D. Non of the above