States of Matter
What the MAIN 3 types of matters
Gas, solid, liquid
Which kind of bond has positive metal ions with electrons moving around?
Metallic Bonds
What is physical & chemical and change
Physical change, changes a substance's form but keeps its chemical identity, while a chemical change creates a new substance with different properties through a chemical reaction
What numbers does the pH scale range to
0-14
Elements on periodic table are organized by
increasing atomic number number of protons, which creates rows periods and columns groups
What is matter made up from?
Atoms
what kind of bond is formed when Atoms share electrons?
Covalent Bonds
What change can be reversed easily?
Physical change
What number is considered neutral on the pH scale
7.00
an element in group 2 of the periodic table would be considered a…
Alkaline earth metal
What is another type of matter apart from Gas, liquid, and solid?
Plasma
In a polar covalent bond, electrons are?
Shared equally
When a new substance is formed with different properties then the original substance it’s called What?
Chemical change
blue litmus paper turning red indicates?
It is acidic
Which family of metals is the most chemically reactive?
Alkali metals
What do particles for solids look like?
Tightly packed and in the same position
Which situation involves hydrogen bonding?
when a hydrogen atom bonded to a highly electronegative atom like Oxygen, Nitrogen, or Fluorine is attracted to a lone pair of electrons
Growth of plants is what change?
Chemical change, it can’t be reversed
A solution with a pH between 0 and 6.9 is considered what?
an acid
Why is it called periodic table?
because elements are arranged in rows periods and columns groups where their chemical properties repeat
What is plasma made up from?
ions
What is the difference between bonds and forces
bonding is usually made to describe higher energy interactions, forces usually attract, are repulsive, high energy, low energy
If the chemical properties of a substance remain the unchanged and the appearance or shape of a substance changes, it is called…
Physical change
What is the pH scale of rain
5
Which element is most metallic in Period 2
Lithium