To predict: The number of particles that would be included in 1g of hydrogen atoms.
Introduction: The basic unit of matter that has the properties of a chemical element is called an atom. Atom is made up of subatomic particles (neutrons, protons, and electrons). The substance that is made from one type of atom is called as an element. Every element has a unique chemical symbol, atomic number, and atomic mass.
To predict: The number of particles that would be included in 2g of hydrogen molecule.
Introduction: The basic unit of matter that has the properties of a chemical element is called an atom. Atom is made up of subatomic particles (neutrons, protons, and electrons). The substance that is made from one type of atom is called as an element. Every element has a unique chemical symbol, atomic number, and atomic mass.
Want to see the full answer?
Check out a sample textbook solutionChapter 2 Solutions
Biology (MindTap Course List)
- A. The first shell corresponds to the first energy level, and it can hold up to 2 electrons. Hydrogen has one proton, so it has 1 electron and one vacancy. A helium atom has 2 protons, 2 electrons, and no vacancies. B. The second shell corresponds to the second energy level, and it can hold up to 8 electrons. Carbon has 6 electrons, so its first shell is full. Its second shell has 4 electrons and four vacancies. Oxygen has 8 electrons and two vacancies. Neon has 10 electrons and no vacancies. C. The third shell corresponds to the third energy level, and it can hold up to 8 electrons. A sodium atom has 11 electrons, so its first two shells are full; the third shell has one electron. Thus, sodium has seven vacancies. Chlorine has 17 electrons and one vacancy. Argon has 18 electrons and no vacancies. Figure It Out: Which of these models have unpaired electrons in their outer shell?arrow_forwardDraw a shell model of an uncharged nitrogen atom. Hint: Nitrogen has seven protons.arrow_forwardA molecule of water is formed when one atom of oxygen is covalently bonded with two atoms of hydrogen. What is the total number of electron pairs that must be shared between the oxygen atom and the hydrogen atoms in order to complete the outer electron shell of all three atoms? a.2 b.3 c.4 d.1 e.5arrow_forward
- Explain why lung and soft tissue appear different on a radiograph when they have both an effective atomic number of 7.4?arrow_forwardUsing the figure, answer the following questions.a. What is the molar composition of the vapor in equilibrium with a boilingliquid that has a composition of 60% A and 40% B?b. A sample of vapor has the composition 50% A and 50% B. What is the composition of the boiling liquid that produced this vapor?arrow_forwardWhich molecule has the most atoms?arrow_forward
- Which sample contains the greatest Number of Molecules ? [H=1 , c=12 ,O=16] 4 gm Hydrogen 18 gm of water 32 gm of O2 66 gm of CO2arrow_forwardExplain the fluidity of liquids in relevance to the postulates of the kinetic molecular theory.arrow_forwardDetermine the number of atoms in 30.0 g of P, with the correct amount of sig figs.arrow_forward
- Predict the pH of a sample of water if Kw were 10−10 or 10−20.arrow_forwardDo a web search to identify each of the following elements>isotopes and indicate the number of neutrons, protons, and electrons in an atom of the element>isotope:arrow_forwardIn terms of electron sharing between atoms, compare nonpolarcovalent bonds, polar covalent bonds, and the formation of ions.arrow_forward
- Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage LearningHuman Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage LearningBiology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning