subject
Chemistry, 13.11.2019 05:31 Astudent333

Which are the reasons for atomic radii decreasing across a period? check all that apply.
a.)more neutrons are added to the nucleus
b.)more protons are added to the nucleus
c.)increased force on the electrons to decrease their size
d.)no additional electrons come between the valance electrons and the nuclei
e.)no new energy levels are added

ansver
Answers: 3

Another question on Chemistry

question
Chemistry, 22.06.2019 10:00
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.
Answers: 1
question
Chemistry, 22.06.2019 12:00
What does a complete balanced chemical equation include? a. exothermic coefficients b. endothermic coefficients c. valence electrons d. molar coefficients
Answers: 1
question
Chemistry, 22.06.2019 19:00
Which is the solubility product expression for caf2(s)?  [ca2+]/[f–]2  [ca2+][f2–]  [ca]+[f]2  [ca2+][f–]2
Answers: 3
question
Chemistry, 22.06.2019 19:30
What is the mass of oxygen gas is consumed in a reaction that produces 4.60mol so2
Answers: 3
You know the right answer?
Which are the reasons for atomic radii decreasing across a period? check all that apply.
a.)m...
Questions
Questions on the website: 13722361