22. Elements that have metallic and non-metallic properties are called a. metalloids b.semi-conductors c. non metals d. alloys Sabne buot olo nomme 23. Which element has an atomic mass of 238.03 amu? a) uranium b) plutonium c) radium апо anousis to his bustl d. neptunium 120 24. Which of the following is not a part of John Dalton's atomic theor a. All natter is made of small, indivisible particles called atoms. b. All the atoms of an element are identical in properties such as size and mas c. Atoms of different elements have the same properties. d. Atoms of different elements can combine in specific ways to form new su 25. An ionic bond forms between a metal and non-metal. A. True

22. Elements that have metallic and non-metallic properties are called a. metalloids b.semi-conductors c. non metals d. alloys Sabne buot olo nomme 23. Which element has an atomic mass of 238.03 amu? a) uranium b) plutonium c) radium апо anousis to his bustl d. neptunium 120 24. Which of the following is not a part of John Dalton's atomic theor a. All natter is made of small, indivisible particles called atoms. b. All the atoms of an element are identical in properties such as size and mas c. Atoms of different elements have the same properties. d. Atoms of different elements can combine in specific ways to form new su 25. An ionic bond forms between a metal and non-metal. A. True

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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5. Complete the following table of neutral atoms of isotopes. Nuclear Symbol 39Sr Ne 33P Atomic Number 50 Mass Number 82 C. d. Inactive gases are called e. Elements in the middle of the periodic table The sum of the protons and neutrons Protons Malleable is a property of a The vertical columns are called families or 20 Neutrons f. g. The elements are arranged by atomic h. Calcium is a(n) metal. i. A has properties of both metals and nonmetals 22 6. Answer the question or complete the following statements about the Periodic Table. a. Group I metals are called b. 76 Electrons 34 lectron dot symbol foroach of following
6. Who discovered the nucleus of the atom? A. Dalton B. Rutherford C. Millikan D. Thomson 7. The five spheres below represent Se, Se2-, O, H, and S, not necessarily in that order. 37 pm 72 pm 100 pm 114 pm 196 pm Which answer correctly orders all five species from smallest to largest? A. O х"(g) + e B. X*(g) → X*(aq) С. Х(g) + e -> X (з) D. X*(g) + e→ X(g) 9. Which of the following compounds are insoluble? A. Pbl2 В. CaSO4 С. CSCI D. Nazs E. Both A and B 10. Assign oxidation numbers to the chlorine atom in each of the following compounds: Cl2, HCI, ClO3, CIF3, PCI3 А. О, —1, +6, +3, -1 В. О, —1, +5, +3, -3 С. 0, —1, +5, +3, —1 D. 0, -1, +3, +3, –1
Which equation is true of an atom with no electrical charge? A. Number of electrons = number of protons B. Number of electrons = number of neutrons C. Number of neutrons = number of protons + number of electrons O D. Number of neutrons = number of protons
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37.) Consider particle A with a mass number of 62, atomic number 32 and an ionic charge of +2. Which of the following is correct a. A has an equal number of protons and neutrons b. A has an equal number of protons and electrons c. A has an equal number of neutrons and electrons d. A has an equal number of protons, electrons and neutrons
Atomic o Mass Number of Name uon lo Symbol Number Neutrons W. Number 8. 2raon ls. 1sd: bozogorq 10 6 ros 20
Which statement regarding the nucleus of an atom is correct? O A. The nucleus contains protons and neutrons and has no charge. O B. The nucleus contains protons and electrons and has no charge. O C. The nucleus contains protons and electrons and is positively charged. O D. The nucleus contains protons and neutrons and is positively charged.
32. An atom contains 27 neutrons and 23 electrons. What element is this atom?
What is the atomic number of an ion with a -2 charge when it has 18 electrons? O A. 20 В. 16 О С. 24 O D. 18
8) Complete the table Isotope Neon-20 Mass (amu) 19.992 Relative Abundance (%) 90.51 Neon-21 20.994 Neon-22 Avg. Atomic Mass= 9.23 Total %: