The Structure of an Atom
What is the center core of an atom called?
Nucleus
What does the atomic number in an element represent
The number of protons in the atom.
Which groups on the periodic table want to gain electrons?
Metals
What happens to the size of atoms as you go from left to right across a row in the periodic table?
Atoms get smaller as you go from left to right across a row.
What are Valence electrons of an atom used for?
Chemical bonds
What are the three subatomic particles that make up an atom?
Protons, Neutrons, and Electrons
An ion with a charge of +1 has lost one electron. If it originally had 10 electrons, how many protons does it have.
Which groups on the periodic table want to gain electrons?
non metals
How does the ability of an atom to lose an electron change as you go down a column?
Atoms lose electrons more easily as you go down a column.
This type of bond involves the sharing of electron pairs between atoms.
Convalent Bond
What does the atomic number of an element represent?
The number of protons in the nucleus.
An oxygen ion has 8 protons. How many electrons does it have O2-
10 electrons
What is the only metal that is a liquid at room tempature.
Mercury
What trend occurs going left to right on the periodic table?
The atomic number increases by 1.
what type of bond occurs when one atom donates an electron to another atom, making positive and negative ions.
Ionic Bonds
What is the role of electrons in the atom.
They make up the electron shells or energy level, negatively charged particles.
How many protons does chlorine have if the atomic number is 17
17 protons
What is ductile?
metal that can bend into wire.
What heappens to the mass going right to left?
The mass of the elements decreases.
what type of bond is typically formed between two nonmetals.
Convalent Bond
How do protons and nuetrons differ from each other?
Mainly in their charge role, Protons have a positive charge, and electrons have a neutral charge.
A sodium ion Na+ has lost one electron. IF it has 11 Protons, how many electrons does it have now?
10 electrons
Where are theses elements located on the Periodic Table? Helium, Oxygen, Nitrogen
Right side.
What is on the right of the table?
In this type of bond, the electrons are transferred from one atom to another.
Ionic Bond