(03.03 MC) The Lewis dot model of a molecule is shown.

Based on the model, which of the following is true? (5 points)
The electronegativity difference between phosphorous and chlorine is greater than 1.7.
Each chlorine has three non-bonded pairs and one bonded pair of electrons.
Phosphorous has three non-bonded pairs and one bonded pair of electrons.
Phosphorous has three valence electrons in the outermost energy level.

Which of the following is always a reactant in a combustion reaction? oxygen nitrogen hydrogen carbon

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.

The image compares the arrangement of electrons in two different neutral atoms. a figure labeled atom q has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has six black spheres. to the left of this figure is another figure labeled atom p. atom p has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has seven black spheres. which of the following best explains the position of the two atoms in the periodic table? atom p has an estimated zeff of 7 and is therefore to the left of atom q, which has a zeff of 6. atom p has an estimated zeff of 7 and is therefore to the right of atom q, which has a zeff of 6. atom p has an estimated zeff of 5 and is therefore below atom q, which has a zeff of 4. atom p has an estimated zeff of 5 and is therefore above atom q, which has a zeff of 4.