Atoms
electron
What is subatomic particle that is negative
Period
What is a horizontal row of elements in the periodic table.
Alkali Metals
What is Group 1
Metal
What is shiny and conducts heat and electicity well.
Neutron
What is subatomic particle that is neutral. no charge.
What is region in an atom where there is a high probability of finding electrons
Orbital, electron cloud, or outside the nucleus
Group or family
What is vertical column of elements in the periodic table.
Halogens
What is group 17.
The periodic table is organized by increasing ____
atomic number
Where is the nucleus and what particle(s) does it contain?
It contains the protons and neutrons. It is in the center of the atom.
Valence Electron
What is an electron that is found in the outermost shell of an atom and that determines the atom's cheimcal properties.
Atomic Number tells you ______________.
What is the number of protons in the nucleus of an atom.
non reactive group.
What is noble gases.
Nonmetal
What is element that conducts heat and electricity poorly
No charge
What is charge of an atom is neutral
Where n the periodic table are the non-metals located?
Upper right hand corner (or-to the right of the zig-zag/stairstep)
Atomic mass
What is the sum of the protons and neutrons in the nucleus of an atom.
Why are the noble gases stable or inert?
full outer shell
Which statement is NOT true about the arrangement of the elements:
A. metals are found on the left side of the periodic table.
B. rare earth elements are in the first column, on the left.
C. transition metals are in the center of the periodic table.
D. inert gases are in the group farthest to the right.
B. rare earth elements are in the first column, on the left.
How many different elements are in NaCl?
2 Na and Cl
Consider the elements in a family or group. Because they are in the same family, what can you predict about these elements?
A) They are all about the same mass.
B) They are chemically reactive in a similar way.
C) The size of the atom decreases as you go down the column.
D) The elements change from metals to nonmetals as go down the column.
B) They are chemically reactive in a similar way.
How many different elements are in NaCl?
2 Na (sodium) and Cl (chlorine)
What is contains properties of both metals and nonmetals.
Semiconductors/metalloids
smallest part of an element that still has the element's properties.
What is atom