The Structure of Atoms
What is the nucleus made up of?
Protons and Neutrons
Neutral atoms-
what are the protons, nuetrons and electrons in carbon?
6 protons, 6 neutrons, and 6 electrons.
What are the 3 major groups on the periodic table?
Metals, Nonmetals, and Metalloids.
How many rows are in the periodic table and what are they called?
7 rows and they are called periods
Why do elements want lose/gain electrons?
They want to have exactly 8 electrons.
Where is the atomic number located?
Isotopes- Uranium-235
How many protons, neutrons, and electrons are in uranium-235.
Protons 92, neutrons 143, electrons 92
Luster is the ability of a substance to reflect light and usually the descriptive words are _______.
Metallic or Non-metallic.
What are the columns called?
Groups
What is a Covalent Bond?
They form when electrons are shared.
True or False
Covalent Bonds are when electrons are shared (between two non metals)
True
Isotope- Carbon-14
How many protons, neutrons, and electrons are in carbon-14.
Protons 6, neutrons 8, electrons 6.
Metals
metals
True or False
Ionic bonds form when two positive bonds are together.
False. Positive and Negative bond together.
What is a proton?
Has a plus one charge. In the nucleus. Has a mass of 1 amu.
How many protons, neutrons and electrons are in sodium.
Protons 11, Nuetrons 12, Electrons 10
What type section on the periodic table include boron, silicon, germanium, arsenic, antimony, tellurium and polonium.
How many groups/families are there?
18 groups/families
What is a Ion?
An atom with the same protons and different electrons.
Molecules are formed through _____.
Chemical Bonds
How many protons, neutrons and electrons are in oxygen?
protons 8, neutrons 8, electrons 8,
What section on the periodic table are a solid, liquid, and gas at room temperature?
Nonmetals
How many Metalloids are there?
7. Boron, silicon, germanium, arsenic, antimony, tellurium, polonium.
True or False
Metals get rid of electrons
true