Elements
Vocabulary
Protons, Neutrons, Electrons
Parts of the periodic Table
100
Ne stands for what element?
Sodium
100
The positively charged center of the atom is known as the
Nucleus
100
Boron has 5 protons and has a mass number of 11. How many electrons does Boron have?
5 electrons
100
Group 8 is known as the __________________.
Noble Gases
200
Zinc's chemical symbol is
Zn
200
particles with a negative electric charge
electrons
200
Sodium has 11 electrons, 12 neutrons, and 11 protons. What is the mass number of Sodium?
23
200
Elements to the right of the stairstep are generally ______________?
Nonmetals
300
Fe stands for what element?
Iron
300
used to represent the number of electrons in the outer energy level.
electron dot diagram
300
Potassium has a mass number of 39 and 19 electrons. How many protons does Potassium have?
19 protons
300
Group 1 is known as _______________________?
Alkali Metals
400
Ga is the chemical symbol for
Gallium
400
The sum of the number or protons and neutrons in the nucleus of an atom is call the
Mass number
400
Argon has 18 protons, 18 electrons and a mass number of 40. How many neutrons does Argon have?
22 neutrons
400
Elements that sit on the stairstep are _________________?
Metalloids
500
Copper's chemical symbol is?
Cu
500
Atoms of the same element that have different numbers of neutrons are called?
Isotopes
500
Tin has an atomic number of 50 and a mass number of 119. How many electrons does Tin have?
50 electrons
500
The Halogens are which group?
Group 7
M
e
n
u