Elements
True or False: From the periodic table, you can gather the average atomic mass.
What is True.
The innermost level of the electron cloud holds up to ___ electrons, and most of the others hold up to ___ electrons.
What is 2 and 8.
The most basic unit of life is?
What is the Cell.
Atoms are made of ________.
What is Subatomic Particles.
_______ is a molecule made of 2 atoms of hydrogen covalently bonded to 1 atom of oxygen.
What is H20.
What helps you find the number of electrons in a neutral atom?
The electrons in the outermost energy level are called ______.
What are Valence Electrons.
Matter is composed of what?
What is an Atom.
The atom's mass is mainly concentrated in the _____.
What is the Nucleus.
The attraction between molecules of the same substance?
What is cohesion.
A ________ is two of the same element with different numbers of neutrons?
What is an Isotope.
What does the group number on the periodic table tell you?
What is the Number of Valence Electrons.
Anything that has mass and occupies space.
What is Matter.
Where are the neutrons in an atom?
What is the Nucleus.
The type of attraction that happens between 2 different molecules and forms stronger bonds than cohesion.
What is adhesion.
The six elements necessary for life are _,_,_,_,_.
What is Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorus
Atoms become stable by forming what kind of bonds?
What is Chemical Bonds.
What are Carbon, Hydrogen, Oxygen, Nitrogen, Phosphate, and Sulfur known as?
What are the 6 elements necessary for life.
Protons have a ________ charge.
What is positive.
What type of molecule is this? Has no separation of charge, no positive or negative poles are formed, and does not dissolve in water.
What is nonpolar.
The smallest part of an element that still has the properties of that element is an ______.
What is an Atom.
What forms when an atom gains an electron, making it negatively charged?
What is an Anion.
List the organization of life, moving from atom to biosphere.
What is an Atom, Molecule, Cell organelles, Cell, Tissue, Organ, Organ system, Organism, Population (Multiple organisms), Community (Group of different organisms), Ecosystem (Lots of different organisms), Biome (Sometimes multiple ecosystems), Biosphere (Like the world)
Electrons have a ________ charge.
What is Negative.
What property of a molecule loves water and dissolves easily in water?
What is hydrophilic.