ASVAB General Science Practice Test 865175

Questions 5
Topics Atomic Number, Compound, Force, Minerals, Species

Study Guide

Atomic Number

The Periodic Table of the Elements categorizes elements primarily by the number of protons in their nucleus (atomic number) and secondarily by the characteristics they exhibit.

Compound

A compound is a substance containing two or more different chemical elements bound together by a chemical bond. In covalent compounds, electrons are shared between atoms. In ionic compounds, one atom borrows an electron from another atom resulting in two ions (electrically charged atoms) of opposite polarities that then become bonded electrostatically.

Force

Force is applied to change an object's speed or direction of motion.

Minerals

Small quantities of certain minerals like iron, calcium, magnesium, and salt are important for nutrition and health.

Species

The narrowest classification of life, species, contains organisms that are so similar that they can only reproduce with others of the same species.