Chapter 1.7, Problem 15PTS

Atomic Structure 4. Write the letter next to the number of units of positive charge that remain if a hydrogen atom loses an electron. 6. a. zero What cha b. one neutron carry? c. two d. three lectron is call

Two particles in an atom may not be same. One could be more than other one. Which are these two partic Select one: a. Protons and Electrons b. Protons and Neutrons c. Electrons and Neutrons d. Electrons and Nucleus e. None of the above

How many valence electrons do the following atoms have?a. boron     b. nitrogen     c. oxygen     d. fluorine

The ions of most main-group elements have the same number of __________ as the noble gas that is closest to them in the periodic table.   a. neutrons   b. protons   c. electrons   d. protons and electrons

Which statement regarding the nucleus of an atom is correct? A. The nucleus contains protons and neutrons and is positively charged. B. The nucleus contains protons and electrons and has no charge. C. The nucleus contains protons and neutrons and has a no charge. D. The nucleus contains protons and neutrons and is positively charged

Give the periodic group number and number of valence electrons for each of the following atoms. a. S Group: b. Ba Group: c. Cs valence electron(s) d. Fr valence electron(s) Group: valence electron(s) Group: valence electron(s)

Most of the mass of any atom is: a. spread evenly throughout the atom b. found in the outermost shell of the atom c. found in the center of the atom

Use the following key to classify each of the elements below in its elemental form: A. Discrete atoms ... C. Metallic lattice B. Molecules ... D. Extended, three-dimensional network   fill in the blank 1 1. Oxygen fill in the blank 2 2. Iodine ... fill in the blank 3 3. Magnesium fill in the blank 4 4. Fluorine

Which of the following species would be expected to have chemical properties most similar to those of the helium atom? A phosphorus atom b. A neon atom c. A calcium atom d. A sodium atom e. A berrylium atom