If an atom contains 15 protons, it must contain 15 what?

Which of the following elements are from group 17, the Halogens?

Which phenomena release CO2 into the atmosphere? A) Forest Fires B) decomposition of organic matter C) reforestation D) Photsynthesis E) volcanic eruptions

What happens in a warm front?

After the troposphere, which later of the atmosphere has the next coldest temperature?

Describe why biodiversity increased with the introduction of sea otters in California over the last fifty years

Why might the earliest music of the Middle Ages have been passed from generation to generation largely by ear?

Which statement about the taxonomic classification system is correct? There are more domains than kingdoms. Kingdoms are the top category of classification. Classes are divisions of orders. Subspecies are the most specific category of classification.

In Drosophila, normal eyes are brick red in color. Homozygotes for recessive alleles at the brownlocus (bw/bw) have brown eyes. Homozygotes for recessive alleles at the cinnabar locus (cn/cn) have bright red eyes.

Cual de estas tres memorias ayuda al procesador (ram, cache, rom)

If an atom has 17 protons, 18 neutrons, and 17 electrons, what is the mass of this atom?