2. 2. A sample of chlorine contains 2 isotopes C1-35 mass 34.969 and Ci-37 mass 36.966. Calculate the weighted average atomic mass if the relative abundance is 75.8% CI-35 and 24.2% C1-37.

The table lists the lattice energies of some compounds.compoundlattice energy (kj/mol)lif            –1,036licl            –853naf            –923kf            –821nacl            –786which statement about crystal lattice energy is  best  supported by the information in the table? the lattice energy increases as cations get smaller, as shown by lif and kf.the lattice energy increases as the cations get larger, as shown by lif and licl.the lattice energy decreases as cations get smaller, as shown by nacl and naf.the lattice energy decreases as the cations get smaller, as shown by naf and kf.

Which is a characteristic of the electron sea model for metallic bonding? molecular orbitals overlap to produce bands. electrons flow easily between metal nuclei. electrons are in fixed positions in the orbitals. atomic nuclei are arranged in an irregular pattern.

What is the empirical formula of a compound that is 50.7% antimony and 49.3% selenium ?