Periodic Table 1
Cu
copper
Ag
silver
K
potassium
Al
aluminum
The Atomic Number is equal to...
the number of protons and electrons
What is the atomic number of Helium?
2
__________ and _________ are the particles in the nucleus.
protons and neutrons
True or False
Sodium and Chlorine interact non explosively
True (it is table salt)
The electrons in the outer most shell are known as?
valence electrons
The SPONCH elements are...
Sulfur, Phosphorous, Oxygen, Nitrogen, Carbon, Hydrogen
True or False:
Electrons are positively charged.
False
True or false:
The elements on the far left of the periodic table are the most reactive
True
To find the number of protons an element has you need to...
subtract the atomic number from the atomic mass.
Group 18 elements are extremely nonreactive nonmetals known as this.
noble gases
True of False:
Protons are positively charged
True
Fluorine, chlorine, Bromine, Iodine, Astatine, and Tennessine all want this number of electrons to fill their last shell
one
An isotope is an element that has a different number of...
neutrons
The first energy shell is located where in relation to the nucleus?
closest to the nucleus
What charge do neutrons have?
no charge
The noble gases share this characteristic....
The have full electron shells