Chapter 2 & 12 Physical Science Assessment Review

The sum of protons plus nutrons in the nucleus of an atom is known as the _____.

Elements in the first group of periodic table are called ?

Whether two atoms can form a covalent bond depends upon their electronegativity?

Scientific evidence that is repeatable can be seen by others if they repeat the same experiment in the same way.

What is your "Claim" when doing Scientific Discovery, Research, or Exploration?

An ___ is a situation specifically setup to investigate relationships between variables.

What are the 4 types of Chemical Bonds (Atomic Bonds)

Entrophy is the measure of all things perfect and in order in the world.

One of the allowed energies for electons in an atom is known as a(n)?

Scientist believe the universe follows a set of "rules" known as ______.

A(n) _____ is material that allows heat to flow through it easily?

The "C" in C.E.R. stands for....?

Name 3 elements that are poor conductors but are good insulators of both heat and electricity?

The repeating pattern of chemical and physical properties of the elements are called?

The measure of disorder / chaos in the world is...

A ____ is a working modle of design that can be tested to see if it works.

Hydrotopes is the unit scientists use to measure the mass of individual atoms?

Charge is a property of all atoms

Why can't the position of an electron be determine with certainty?

Which partical in an atom is most responsible for its chemical properties?

Learning by asking questions & seeking the answers is called ______.

To _______is to figure something outfrom known facts using logical evidence.

The "E" in C.E.R. Stands for what?

Evidence provides "Proof" of what Your Claim is trying to accomplish?

If two atoms differ considerably in their electronegativity they are...?

Covalent bonds consist of ...? (Select all that apply)

This Element is abundant in Earths crust and combines with oxygen to form rocks & menerals. Which one is it?

Covalent Bonds are formed by...

What is a Step by Step account of all that you do when conducting a particular experiement?

A(n) ____ is a material that slows down or stops the flow of either heat or electricity?

Steel is what on the periodic table of elements?

Which 2 Elements are liquid at room temperature?

An element that has a strong intermolecular forces is most likely to have what?

Covalent Bonds are chemical reactions by which the sharing of pairs of electrons between atoms and other "Ionic Bonds."

He explained Spectral Lines as specific colors that are the result of electrons that change from higher to lower energy.

_____ is a fundamental property of matter that can be either positive or negative.

After testing, a hypothesis that seems to be false. This indicates that _____? 

Whether two atoms can form a covalent bond depends upon their electronegativity?

An instrument that is used to separate light into spectral lines is a(n)______.

The _____ do not naturally form chemical bonds with other elements

Name 2 types of Energy Changes that can occur in a Chemical Reaction...

A professional who uses scientific knowledge to create or improve technology.

____ is the application of science to meet human needs & solve problems.

Chemical Bonding is the sharing of pairs of electrons between atoms and other covalent bonds. True/False?

A Very low mass partical with a negative charge, found in atoms, is called a electron.

A process used to build and test devices that solve technical problems is_____.

"Reasoning" is what when applying Scientific Method to Research,Exploration,Discovery,or Experiments

Two opposite ions attract each other and form the"Ionic Bond"

Two or more different atoms are combined in definite proportions in any ...

A _____ shows the characteristic colors of light given off or absorbed by an element.

There are two types of atomic bonds - ionic bonds and covalent bonds.

Atoms of the same element have the same number of ____.

Positively Charged Particals in an Atom are Called the

An example of experimental technique is the way you release a cart on a ramp while conducting an experiment.

THe average mass of all of the known isotopes of an element is known as its______.

A(n) ____ is a possible scientific explination that can be tested by comparison with scientific evidences.

Something you keep the same from trial to trial in an experiment is called a ______.

"Half Life" is used to describe how quickly unstable atoms undergo, or how long stable atoms survive,radio active decay

Halogens include fluorine, chlorine, and bromine?

A scientific explination supported by lots of evidence collected over a long period of time is a(n)_____.

The elements are organized into a chart known as the ______.

Objective Evidence Describes only what actually happened in an theory as exactly as possible.

Evidence provides "Proof" of what Your Claim is trying to accomplish?

The "R" in C.E.R stand for what...?

Two opposite ions attract each other and form the "Ionic Bond".