In general, as you move from right to left across a period, the number of valence electrons

A : Increases

B : Stays the same

C : Increases and then decreases

D : Decreases

I already tried increases and it's wrong

The magnetic field strength within a long solenoid isb=4.0t t, where t is time in seconds. if the radius of thesolenoid is1.0 cm, what is the magnitude of the non-coulomb force that acts on a6.0 c charge a distance6.

A truck covers 40.0 m in 7.10 s while smoothly slowing down to a final velocity of 2.75 m/s ... (a) Find the truck's original speed.

A spherical shell of radius 9.0 cm carries a uniform surface charge density σ = 9.0 nC/m2. The electric field at r = 9.1 cm is approximately

The electric field in a certain region of Earth's atmosphere is directed vertically down. At an altitude of 439 m the field has magnitude 50.7 N/C; at an altitude of 361 m, the magnitude is 84.3 N/C.

An object is in circular motion. How will the object behave if the centripetal force is removed?

Why does it hurt your hands when you carry heavy shopping in carrier bags?

Why did scientists choose carbon as a base for the atomic mass unit? Which isotope of carbon did they use?

What organelle is found in all animal cells and some plant cells

Basic of Archimedes's principle of how fluid can make body to float and sink.

A bullet is accelerated down the barrel of a gun by hot gases produced in the combustion of gun powder. What is the average force (in N) exerted on a 0.0500 kg bullet to accelerate it to a speed of 625 m/s in a time of 1.10 ms (milliseconds)