Chapter 14 Review
... 6. Which part of the atom dictates its chemical properties?
Ions and isotopes
... in an element without changing the identity
of the element.
atomic number - Thomas C. Cario Middle School
... The periodic table is a chart containing information about
the atoms that make up all matter.
An element is a substance made up of only one type of
The atomic number of an atom is equal to the number of
protons in its nucleus.
The number of electrons surrounding the nucleus of an
atom is equal ...
Atomic Theory- 1. Matter is composed of tiny, indivisible particles
... called atoms.
2. An element is composed of one type of atom.
Properties of atoms are identical to each other.
3. A compound contains two or more different
elements. The relative number of atoms of each
element in a compound is the same.
4. Atoms don’t change their identities in chemical
Chapter 3 – Atomic Structure - Mercer Island School District
... • Each element is composed of tiny atoms
• Atoms of an element are identical but differ from
those of other elements.
• Atoms are neither created nor destroyed.
• A given compound always has the same relative
numbers and kinds of atoms.
Physical Science Chapter 6 Study Guide Every element consists of
... o Every element consists of tiny particles called ____________
o All atoms of a particular element have the same ____________________
o Different elements have different properties because their atoms are different
o Atoms of different elements can combine in specific ways to form ____________
o Che ...
Chapter 6 Review“The Periodic Table”
... 15. About how many more times massive is a proton than electron?
16. How many neutrons are present in an isotope of uranium-235?
17. What is the atomic number for an element with 41 neutrons and a mass number of 80?
18. What is the maximum number of electrons in the second principal energy level?
The New Alchemy
... Protons – one of the parts of an atom.
Protons have a (+) charge and are found in
Neutrons – one of the parts of an atom.
Neutrons have no charge and are found in
Nucleus – found in the center of an atom.
It contains protons and neutrons. Nuclei is
the plural of nucleus.
Pre-Knowledge: Chemistry and Physics Vocabulary Atomic Number
... become more stable by emitting radiation. Radioactive decay is the process in which an unstable
atomic nucleus loses energy by emitting radiation in the form of particles or electromagnetic
waves. This radiation can be emitted in the form of a positively charged alpha particle, a
negatively charged ...
atoms - Trinity Regional School
... John Dalton
1. Atoms are the smallest form of
2. Atoms make up all matter
3. Atoms of the same element are
4. Atoms cannot be broken down
5. Atoms combine in specific ratios
atomic structure - IGCSE STUDY BANK
... It is the proton number that determines the specific identity of a particular element and its electron
The mass number (A) is also known as the nucleon number (N), that is the number of particles in
the nucleus of a particular isotope.
Protons and neutrons are the nucleons present in the ...
1 - cloudfront.net
... How is the number of neutrons in the nucleus of an atom calculated?
All atoms are neutral, with the number of protons equaling the ___.
Isotopes of the same element have different _____.
Using the periodic table, determine the number of neutrons in 16O.
What does the number 84 represent in the name ...
Atomic Structure and the Periodic Table Vocabulary
2. An element that has the same number of protons but different number of neutrons in the
3. It’s the average mass of the isotopes of atoms of an element.
Section 1 Review
... or broken down into simpler substances by
isotope one of two or more atoms that have the
same number of protons (atomic number) but
different numbers of neutrons (atomic mass)
BC1 Atoms Unit Standards
... 2c Identify the number of neutrons in an atom from atomic number
and mass number
2d Identify the number of electrons in an atom when given the
number of protons and charge
2e Identify the charge of an ion from the number of protons and
2f Identify the mass of an atom from the number of pro ...
Flerovium is a superheavy artificial chemical element with symbol Fl and atomic number 114. It is an extremely radioactive synthetic element. The element is named after the Flerov Laboratory of Nuclear Reactions of the Joint Institute for Nuclear Research in Dubna, Russia, where the element was discovered in 1998. The name of the laboratory, in turn, honours the Russian physicist Georgy Flyorov (Флёров in Cyrillic, hence the transliteration of ""yo"" to ""e""). The name was adopted by IUPAC on 30 May 2012.In the periodic table of the elements, it is a transactinide element in the p-block. It is a member of the 7th period and is the heaviest known member of the carbon group. Initial chemical studies performed in 2007–2008 indicated that flerovium was unexpectedly volatile for a group 14 element; in preliminary results it even seemed to exhibit properties similar to those of the noble gases. More recent results show that flerovium's reaction with gold is similar to that of copernicium, showing that it is a very volatile element that may even be gaseous at standard temperature and pressure, that it would show metallic properties, consistent with it being the heavier homologue of lead, and that it would be the least reactive metal in group 14.About 90 atoms of flerovium have been observed: 58 were synthesized directly, and the rest were made from the radioactive decay of heavier elements. All of these flerovium atoms have been shown to have mass numbers from 284 to 289. The most stable known flerovium isotope, flerovium-289, has a half-life of around 2.6 seconds, but it is possible that this isotope may have a nuclear isomer with a longer half-life of 66 seconds; this would be one of the longest half-lives of any isotope of a superheavy element. Flerovium is predicted to be near the centre of the theorized island of stability, and it is expected that heavier flerovium isotopes, especially the possibly doubly magic flerovium-298, may have even longer half-lives.