4. When referring to the element phosphorus on the periodic table

osphorus on the periodic table, the number 15 represents

A. energy level.

B. atomic weight.

C. atomic number.

D number of atoms.

We can learn the most about where and how an igneous rock formed by studying its

What are the units for measuring current and voltage

How can you make water boil at 105*c instead of 100*c?

Orbits are more like Ovals that scientists describe as what?

What is the energy of a photon with a frequency of 2.2 * 1016 Hz? Planck's constant is 6.63 * 10-34 J•s.

Complete this equation that represents the process of nuclear fission. Superscript 239 Subscript 94 Baseline P u + Superscript 1 Subscript 0 Baseline n yields Superscript A Subscript B Baseline B a + Superscript 91 Subscript 38 Baseline S r + 3

A particular electrical signal being transmitted to a neuron is sufficient to generate an action potential. If the magnitude of the incoming electrical signal is doubled, the action potential will

This part of the electromagnet spectrum produces heat and with special equipment can locate people at night. infrared waves microwaves X-rays gamma rays

An ambulance is traveling east at 51.6 m/s. Behind it there is a car traveling along the same direction at 32.3 m/s. The ambulance driver hears his siren at a frequency of 615 Hz. 32.3 m/s Car 51.

When a chemical reaction occurs with only one substance, what happens to the atoms of that substance?