Atomic structure
What is the charge on the nucleus?
positive
what is the charge on protons?
positively charged
What are the most reactive group of metals?
Alkali
How many electrons(max) can be placed in first shell?
2
particles in a matter are in constant motion (T or F)
T
Where are electrons located in an atom?
energy levels/ shells/ orbitals
which subatomic particles have no charge?
Neutron
Where are metals located in the Periodic table(PT)
Left side of the staircase
How many electrons can shell 2 hold?
8
The space between particels depends on its ______
State of matter
What makes us most of the mass of the atom ?
Nucleus(P and N)
Which subatomic particles are negatively charged ?
Electrons
Where are the non metals located in the PT?
On the right side of the staircase
How many electrons does neon atom have?
10
When energy is added the particles ________ energy
Gain
what takes up most of the space in an atom?
shells/ orbitals
What does the word subatomic means?
smaller than or occurring with in the atom
What is the most reactive non metal group ?
Halogens or group 17
What subatomic particles are in the nucleus in Bohr's model of atom
Protons and Neurtrons
When energy is removed particeles___ energy
lose
What makes an atom electrically neutral?
It has same number of protons and electrons.
what makes up the atomic mass of an atom?
protons and neutrons
what group of elements are unreactive or do not react?
Noble gases or inert gases
Electrons are present in ______ around the nucleus
Shells /orbits/ energy levels
In solids the particles are ____ about their position and in liquids particles _____past each other and in gases they move _____
vibrate
slide
freely