The elements in Group 2 have similar chemical properties because each atom of these elements has the same

(a) atomic number

(b) mass number

(c) number of electron shells

(d) number of valence electrons

Lewis structures cannot

The difference between stager and eclipse

What is the mass of 0.80 moles of Mg?

Suppose you increase your walking speed from 7 m/s to 14 m/s in a period of 2 s. What is your acceleration?

Which of the following characteristics do all plants share? a. being unicellular b. producing flowers c. being a prokaryote d. being an autotroph

What are the first five elementsof the periodic table?

Name 3 characteristics that can be used to identify minerals

Hemoglobin, the oxygen-carrying protein in red blood cells, has four iron atoms per molecules ad contains 0.340 percent iron by mass. calculate the molar mass of hemoglobin

Nancy wants to find out how the steepness of a hill's slope affects the amount of soil that erodes from it. She has soil, a long pan, and a pile of books with which to build a model hillside. She has a watering can to model rainfall.

Elements on the periodic table are arranged by increasing?