Atoms
What is the smallest unit of an element that retains its properties?
What is an atom?
What information does the atomic number of an element provide?
What is the number of protons?
Why is peer review important in scientific research?
to ensure accuracy and validity
Where can metals be found on the Periodic Table
Left and middle
What does the term "matter" refer to?
What is anything that has mass and takes up space?
Everything is made up of atoms which are the smallest units of an element
Atomic Theory
Horizontal Rows on the periodic table are called?
Period
What is a Scientific Theory?
Explains how a natural phenomenon works
Elements in the same group have?
similar properties
What is a compound?
2 or more different elements chemically combined
Describe the structure of an Atom
Protons and Neutrons in the nucleus and electrons on the outside
How many Protons and Electrons does Oxygen (O) contain?
8
What is a Scientific Law?
repeated experimental observations that describe an aspect of the world
How are elements similar to letter of the alphabet?
limited amount of letters can make an unlimited amount of words.
What is the charge of a neutron?
Neutral
What is in the Nucleus of an Atom?
Protons and neutrons
What increases as you move left on the Periodic Table?
Atomic number
Why does scientific knowledge change over time?
New research and information is gathered
What chemical properties are similar to Boron (B)?
1. Argon (Ar)
2. Silver (Ag)
3.Copper (Cu)
4. Aluminum (Al)
Aluminum (Al)
Which particle in an atom has a positive charge?
What is a proton?
Where can most of the mass of an Atom be found?
Nucleus
What is the significance of the "stair-step" line on the periodic table?
What does it separate metals from nonmetals?
How do Theories become more widely accepted over time?
Observations and extensive evidence
What makes Sodium (Na) and Potassium (K) similar?
They are in the same group of the PT
Draw and Label a picture of Oxygen (O) as an Atom. It has 8 protons,8 Neutrons, and 8 electrons
8 protons (+) in the middle)
8 neutrons () (in the middle)
8 electrons (-) (on the outside)