Regents Review 2- Atom & Bonding

Which of the following statements is FALSE?

• Elements are made up of 1 type of atom.

• Elements cannot be broken down chemically.

• Atoms of the same element can have different amounts of protons.

• Atoms of the same element can have different amounts of neutrons.

Which of the following chemistry concepts is FALSE?

• Isotopes are atoms of the same element that have different mass numbers.

• Isotopes have the same amount of protons and the same amount of neutrons.

• Ions are particles with a positive or negative charge.

• Ions form from the gain or loss of electrons.

Which of the following chemistry concepts is FALSE?

• The atomic number is equal to the amount of neutrons in an atom.

• In an atom, the amount of protons is equal to the amount of electrons.

• The mass number is the sum of the protons and neutrons.

• An element's identity is based on the amount of protons it has.

Which of the following chemistry concepts is FALSE?

• Protons are positively charged.

• Protons and Neutrons both have a mass of 1 amu.

• Neutrons are negatively charged.

• Protons and Neutrons are found in the nucleus of an atom.

Which of the following chemistry concepts is FALSE?

• An orbital is the most probable location of an electron.

• Atoms are electrically neutral because the amount of electrons equals the amount of neutrons.

• The mass number minus the amount of protons gives you the amount of neutrons.

• The outermost energy level is called the valence shell.

Which of the following chemistry concepts is FALSE?

• Noble gases are stable atoms because they have a full valence shell.

• Metals will lose electrons and form positive ions.

• Nonmetals will gain electrons to obtain a full valence shell (8 e-).

• Atoms bond with each other to become less stable.

Which of the following chemistry concepts is FALSE?

• Ionic bonding is the sharing of electrons between 2 nonmetals.

• Covalent bonding is the sharing of electrons between nonmetal atoms.

• Metallic bonding forms a sea of mobile electrons within a metal.

• Ionic bonding is the transfer of electrons from the metal to the nonmetal.

Which of the following chemistry concepts is FALSE?

• Polar covalent bonds form through an unequal sharing of electrons.

• Nonpolar covalent bonds form through an equal sharing of electrons.

• Polar molecules are symmetrical, so electrons are evenly distributed.

• Nonpolar molecules are symmetrical, so there is an even distribution of charge.

Which of the following chemistry concepts is FALSE?

• Hydrogen bonding is an intermolecular force between molecules.

• Hydrogen bonding forms between the hydrogen of one molecule and the N/O/F of another molecule.

• Water molecules are held together through hydrogen bonding.

• Water molecules have are nonpolar molecules.

According to Table S, which of the following chemistry concepts is FALSE?

• Fluorine has an electronegativity of 4.0.

• The first ionization energy of hydrogen is 1312 kJ/mol.

• The melting point of Beryllium is 1560 degrees Celsius.

• The atomic radius of Carbon is 75 pm.