The Structure of a Atom
What is a proton?
A subatomic particle that has a positive charge, is located inside the nucleus, has a mass of 1 amu, and is equal to the mass number.
In neutral atoms what is the number of protons and electrons?
Have the same number of protons and electrons.
Where are metals on the periodic table?
The left of the zigzag
What are periods?
Rows that go left to right, there are seven, if elements are in a period, they have the same number of orbitals (rings).
Why do chemical bonds happen?
To become stable (have 8 electrons)
What is a neutron?
Something that has no charge, mass of 1 amu and is located inside the nucleus.
In an isotope what is the number of protons, electrons and neutrons?
Has the same number of protons and electrons, but a different number of neutrons.
Where are Non-metals on the periodic table?
The right of the zigzag
What are families?
Verticle columns based on similar chemical properties.
When do covalent bonds form?
When atoms share electrons
Something that has a negative charge, virtually no mass, located outside of the nucleus (orbitals).
In an Ion what is the number of protons and electrons?
Have different numbers of protons and electrons.
What are metals?
Solid at room temperature (except for mercury), good conductors of electricity and heat, metallic looking with a shiny luster, ductile and can be drawn into wire, malleable and can be hammered into sheets without breaking.
True or False:
Atomic numbers generally get bigger as you move down the periodic table.
True
When do ionic bonds form?
When oppositely charged ions are attracted to each other
What is the atomic number?
Equal to the number of protons, the identity of the substance, no two elements can have the same atomic number.
What ion has a positive charge?
Cation
What are non-metals?
Solid, liquid, or gas at room temperature, poor conductors of electricity and heat, not metallic looking, gave a dull luster, brittle when they are solid.
True or False:
Mass numbers generally get bigger as you move down the periodic table.
True
What is put together in a covalent bond?
Non-metal + Non-metal
What is a neutral atom?
Atoms that have the same number of protons and electrons, no overall charge, as written on the periodic table, all atoms are neutral.
Anion
What are metalloids?
Found along the zigzag line on the periodic table, have no set characteristics, share properties of both metals and non-metals, include boron, silicon, germanium, arsenic, antimony, tellurium, polonium.
How many families are in the periodic table?
18
What is put together in an ionic bond?
metals (+) with non-metals (-)