What do all elements in the same period on the periodic table have in common?

a. They have the same number of electrons.

b. They have the same number of protons.

c. They have the same number of neutrons.

d. They have the same number of orbitals.

On December 26, 2004, a great earthquake occurred off the coast of Sumatra and triggered immense waves (tsunami) that killed some 200000 people.

Choose an example of a vertical motion with a negative velocity and a negative acceleration.

A package is dropped from a helicopter moving upward at 15m/s. If the helicopter was 1000m above the ground when the package was released, how long does it take before the package strikes the ground

Of gold oxygen iron and sulfur which is a renewable source

A person with serious mental illness (SMI) lives in a "parallel universe" separate from "normals" (the name used to describe people who have no mental illness). What causes this condition?

2. A circuit consists of a 10.0-ohm resistor, a 15.0-ohm resistor, and a 20.0-ohm resistor connected in parallel across a 9.00-volt battery. What is the equivalent resistance of this circuit? (1) 0.200 12 (3) 4.62 1 (2) 1.95.22 (4) 45.012

What technology makes up the transducer? a. A phased array c. A PET scan b. An x-ray d. A laser

Explain how birthrates and death rates influence the size of population.

What happens to the resistance of a wire as its length increases? A. The resistance decreases. B. The resistance is not affected by a change in wire length. C. The resistance alternates between high and low values. D. The resistance increases.

What is true about molecular compounds that dissolve in water