Why are there only two elements in the first row of the periodic table?

Which of the following explains why metals are able to be pounded, extruded, bent, and shaped without breaking?

The roasted said an atom is least reactive when it contains eight electrons in its outermost shell

What is the total charge of an ionic compound

An upright cylindrical tank with radius 6 m is being filled with water at a rate of 2 m3/min. how fast is the height of the water increasing? if h is the water's height, the volume of the water is v = πr2h. we must find dv/dt.

If an atom has 35 protons in the nucleus how many electrons will have orbiting the nucleus

A student makes observations when water is added to a blue solution of copper sulfate. The student makes only 1 observation: the solution changes to a lighter shade of blue. Is this an example of a chemical reaction? Explain your reasoning.

When dos the spring tide occur

As ice transforms into steam, Question options: new molecules are formed. the types of atoms are changed. energy is absorbed by the molecules. the mass of the molecules is increased.

Why do chemists consider the periodic table so useful?

Plates include large sections of Earth Oceanic or Continental