Metric System and measuring
What does the prefix "kilo" mean?
1000
Name the negative particle in an atom.
Electrons
What is a horizontal row on the periodic table called?
Period
What state of matter can change its shape and volume?
gases
What are the outermost electrons in an atom known as?
Valence electrons
What is the SI base unit for temperature?
Kelvin
What is the number of protons in an atom called?
Atomic Number
What are the vertical columns on a periodic table known as?
Group or family
What state of matter has a definite shape and volume?
Solids
This bond is between a metal and a nonmetal.
Ionic bond
What is the formula for density?
D = M/V Density = mass/volume
How do you find the mass number of an atom?
Add the sum of protons and neutrons
How many valence electrons do the elements in group 15 have?
5
What is the process of a gas turning into a liquid?
Condensation
How many valence electrons do most atoms need to be stable.
8
What is an instrument you can measure length with?
(Meter stick, ruler, yard stick, tape measure)
What is the atomic number of an element with 8 Neutrons, 7 electrons, and 8 protons?
8
What is the chemical symbol for Helium?
He
Paper being burned and turned into ash is an example of what type of change?
Chemical change
What number of electrons do Hydrogen and Helium need to be stable?
2
Name 3 metric system prefixes
(centi, milli, kilo, hecto, deci, deka)
What is the charge of a neutron?
Neutral no charge
Name a nonmetal on the Periodic Table.
H, O, N, C, He, F, Cl
What is the process of a solid turning into a gas?
Sublimation
What type of bond would be between Hydrogen and Oxygen?
Covalent