patterns in the periodic table

Question 1

relative mass and charge of protons, neutrons and electrons

Answer 1

protons = 1 (+)
neutrons = 1 (no charge)
electrons = 0.0005 (-)

Question 2

are protons neutrons and electrons evenly distributed in atoms

Answer 2

nope.

Question 3

atomic number

Answer 3

Atomic Number: The number of protons in the nucleus.

Question 4

define an isotope

Answer 4

Isotope:
An isotope is a form of a chemical element whose atomic nucleus contains a specific mass of neutrons, in addition to the number of protons that uniquely defines the element.
Isotopes are virtually identical in their chemical reactions, however there may be a difference in the speed of their reaction.
The have the same amount of protons and electrons but not neutrons.
The uncharged neutrons make no difference to chemical properties but do affect physical properties such as melting point and density.

Question 5

periodic table arrangements

Answer 5

Elements in the Periodic Table are arranged by nuclear number.

Elements with the same characteristics are grouped together on the periodic table.

A row of elements on the Periodic Table is called a period.

A column of elements on the Periodic Table is called a group.

Question 6

groups names & examples

Answer 6

Group 1 - Alkali Metals - Li, Na, K, Rb, Cs, Fr

Group 2 - Alkaline Earth Metals - Be, Mg, Ca, Sr, Ba, Ra

Group 3-12 - Transition Metals - Au, Cu, Fe, Co, Zn, Ag, Cr, Hg, Ni, V, Mn, Sc, Ti, Cd, Pt, W, Rh, Y, Pd, Os, Mo, Ir, Re, Zr, Ta, Ru, Nb, Tc, Hf, Bh, Cn, Hs, Mt, Rg, Rf, Sg, Db, Ds.

Group 17 - Halogens - F, Cl, Br, I, At, Ts

Group 18 - Noble Gases - He, Ne, Ar, Kr, Xe, Rn, Og

Question 7

where metalloids, metals, non-metals and metalloids go on the periodic table

Answer 7

Metalloids ⇆ Staircase (B,Si,Ge,As,Po,Sb)

Metals ⇆ Left & Centre (Hg, Co, Cu, Ti)

Non-Metals⇆ Mostly on the Right (C, N, O, P, Si, Cl)

Metalloids⇆ in between