Question

1. Define the periodic table.
2. Define alkaline earth metals.
3. Define atom.
4. Define resistance.
5. Define electric current.
6. “Conductor, circuit breaker, switch” use the words provided to write the function of fuses.

i WILL MARK ANSWER brainiest if someone answers all questions in their own words...

Answer 1

Answer:

1 . Define the periodic table .

Ans . A table of the chemical elements arranged in order of atomic number , usually in rows , so that elements with similar atomic structure appear in vertical columns .

2 . Define alkaline earth metals .

Ans . Any of the elements beryllium , magnesium , calcium , strontium , barium , & radium , occupying group llA (2) of periodic table . They are reactive electropositive , divalent metals , and form basic oxides which react with water to form comparitively insoluble hydroxides .

3 . Define atom .

Ans . The smallest particle of a chemical element that can exist .

4 . Define resistance .

Ans . Resistance is a measure of the opposition to current flow in an electrical circuit . Resistance is measured in ohms , symbolized by the Greek letter omega . All materials resist current flow to some degree .

5 . Define electric current .

Ans . An electric current is a stream of charged particles , such as electrons or ions , moving through an electrical conductor or space . It is measured as the net rate of flow of electrical charge through a surface or into a control volume .

6 . "conductor , circuit breaker , switch" use the words provided to write the function of fuses .

Ans . => A fuse is a small , thin conducter designed to melt and separate into two pieces for the purpose of breaking a circuit in the event of excessive current .

=> A circuit breaker is a specially designed switch that automatically opens to interrupt circuit current in the event of an overcurrent condition .