Atoms
All neutrons are positive, negative, or neutral
What is neutral?
What to look at on a Periodic Table to determine the number of energy levels an atom has
What are periods?
Most atoms have a ________ charge. a. positive b. negative c. no
What is "c. no charge"?
Most atoms have the same number of protons and electrons
One property of metals is that they are able to bend without breaking. This property is called __________
What is malleable or malleability?
On the periodic table there are ____ groups (how many)
What is 18 groups?
All protons are _____________ a. positively charged particles b. negatively charged particles
What is "positively charged particles"?
True or False: Metals are good conductors of electricity, malleable, and ductile.
What is true?
The sum of the protons and neutrons in an atom's nucleus is its _______________.
What is the "atomic mass" or "mass number"?
On a periodic table, the atomic number always determines how many _______ are in the nucleus of the atom.
What are protons?
Elements in the same vertical column (group / family) when reacting chemically are similar or different?
What is similar
What is the name of the atomic model the places the electrons in shells/energy levels?
What is a Bohr Model?
The charge of a neutron
What is "no charge" or "neutral"?
The greatest number of electrons an atom can hold in its second energy level is ______________
What is 8?
On a periodic table, the horizontal rows of elements are called __________
What are periods?
Elements that have properties of both metals and nonmetals are known as ______________.
What are metalloids?
Name of the atomic model/structure that focuses only on the valence/outer electrons?
What is a lewis structure?
The electric charge of an electron
What is a negative charge?
True or False: Elements are grouped vertically by characteristics and horizontally by increasing protons.
What is true?
How many electrons can the 1st energy level of an atom hold?
What are 2 electrons?
On the Periodic table, most of the elements are metals, metalloids, liquids, gases, or nonmetals?
What are metals?
Determines the atomic number of an element?
a. the mass of the atom b. electrons in the atom c. neutrons in the atom d. protons in the nucleus of an atom
What is "d. protons in the nucleus of an atom"?
Elements in the same vertical column (group / family) have the same number of _________ _________
What are valence electrons?
Subatomic particles that make up the nucleus of an atom
What are Neutrons and Protons?
The Elements found in a PERIOD......a: have the same properties b. do not have similar properties c. belong to the same family. d. Increase by atomic number.
What is d. increase by atomic number?
If an atom is electrically neutral, it means it has the same number of ________ and ________
What are protons and electrons?