Metals are located to the ________ of the stair step.
What is the LEFT
100
Material that can be pulled or drawn into long wire is ______.
What is DUCTILE
100
A material that can be hammered or rolled into flat sheets and other shapes is a __________ material.
What is MALLEABLE
100
Atomic Mass-Atomic # = ?
What is # of Neutrons
100
___________ devised the 1st periodic table based on atomic mass however, some elements were out of order. In 1913, Henry G.J. Moseley arranged elements by atomic # and it is what we used today!
What is DMITRI MENDELEEV
200
Atoms of the same element that have different number of neutrons are known as __________.
What is ISOTOPES
200
The # of protons in an atom is the _________.
What is ATOMIC NUMBER
200
What are the charges of protons, neutrons and electrons?
What is POSITIVE, NEUTRAL/NO CHARGE & NEGATIVE CHARGE.
200
The nucleus of an atom consists of ___________ and __________.
What is protons and neutrons.
200
____________ are the basic building blocks of matter.
What is ATOMS
300
Determine what elements 2 of these following 3 symbols represent; Au, Hg, Fe.
What is Au= GOLD, Hg= MERCURY & Fe = IRON
300
Each energy level has a maximum number of ___________ it can hold.
What is ELECTRONS
300
The halogens are located in group ____.
What is 17
300
If a carbon aftom has 7 netrons and 6 protons, what is its mass number?
What is 13
300
Horizontal rows of the periodic table are called __________.
What is PERIODS
400
Elements in the same period have the same ___________.
What is NUMBER OF ENERGY LEVELS.
400
Draw a Bohr model of nitrogen on the board.
What is TEACHER WILL DECIDE
400
Determine the group and period of the element gold.
What is Gold (Au) group 11 , period 6
400
Draw a Bohr model of carbon on the board.
What is TEACHER WILL DECIDE
400
_______ are shiny, good conductors of heat and electricity and solid a room temperature.
What is METAL ELEMENTS/METALS
500
What is the only metal found at liquid state at room temperature?
What is MERCURY
500
Elements found in Groups 3-7 on the periodic table are called ___________ elements.
What is TRANSITION
500
The region around the nucleus that is occupied by electrons is called __________.
What is ELECTRON CLOUD
500
The maximum number of electrons aloud in the 1st and 2nd shell are ____ and ___.
What is 2 in the first & 8 in the second.
500
The number of which particle determines the identity of an element?