properties of matter (part 1)
anything that has mass and takes up space
matter
process of changing from a solid to a liquid
melting
negatively charged subatomic particles
electrons
atomic number = number of _____
protons
the vertical columns on the periodic table are called __________
groups
properties, such as color, density, shape, or mass that can be observed or measured without any changes to the identity or composition of the substance
physical properties
phase/state of matter in which the particles have the ability to move around and slide past each other and take on the shape of the container they are being held in
liquid
positively charged subatomic particles
protons
Group VIA have ___ valence electrons
6
the horizontal rows on a periodic table are called _____
periods
properties, such as reactivity, pH, corrosion, or conductivity that describe how that substance will change
chemical properties
phase/state of matter in which particles are much more spread out and collide randomly with one another. They fill any container, but if the container is not sealed, they will escape. In this state it can be compressed easily.
gas
subatomic particles with no charge
neutrons
each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons
isotope
Group VIIIA are the ______ gases
nobel
phase/state of matter in which the particles are closely packed together. The forces between particles are so strong that the particles cannot move freely but can only vibrate. As a result, it has a stable, definite shape, and a definite volume.
solid
how many valence electrons do the halogens have
(vIIA)
7
electrons in the outermost shell (determine how that atom will interact with other atoms)
valence electrons
mass number = _______+_______
protons + neutrons
Group IA are the ________ metals
alkaline
the 4th (highest energy) state of matter
plasma
What element has the symbol Pb
Lead
which 2 subatomic particles are in the nucleus
neutrons and protons
How many neutrons does Carbon14 have
hint: carbon has an atomic number of 6
An element that is neither a metal or a non metal but is something in between is a _______
bonus 300 pts if you can name one of them....
metalloid
bonus- boron, silicon, germanium, antimony, arsenic, tellurium, astatine