Physics, 02.11.2019 03:31 lil8174

Which of the following statements about valence electrons and the periodic table is true?
a) the number of valence electrons decreases from left to right across each period. b) the number of valence electrons increases from top to bottom within each group.
c) all of the elements in group 9 have nine valence electrons.
d) elements with the most valence electrons are in group 18.

Answers: 1

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 13:10, alejandramirand9836

A0.750 kg aluminum pan is removed from the stove and plunged into a sink filled with 10.0 kg of water at 293 k. the water temperature quickly rises to 297 k. what was the initial temperature of the aluminum pan? the specific heat of aluminum is ca = 900 j/(kgk) and water is cw = 4190 j/(kgk)

Answers: 3

continue

Physics, 22.06.2019 14:40, sherlinejules1

You throw a small rock straight up from the edge of a highway bridge that crosses a river. the rock passes you on its way down, 7.00 s after it was thrown. what is the speed of the rock just before it reaches the water 28.0 m below the point where the rock left your hand? ignore air resistance.

Answers: 2

continue

Physics, 22.06.2019 16:10, estefaniapenalo

To a of 4 x hz is 1. 0. mm nm nm

Answers: 1

continue

Physics, 22.06.2019 17:30, evanwall91

Students in an introductory physics lab are performing an experiment with a parallel-plate capacitor made of two circular aluminum plates, each 11 cm in diameter, separated by 1.0 cm. how much charge can be added to each of the plates before a spark jumps between the two plates? for such flat electrodes, assume that value of 3×106n/c of the field causes a spark.

Answers: 2

continue

You know the right answer?

Which of the following statements about valence electrons and the periodic table is true?
a)...