The building block that makes up all matter in the universe is atoms.
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Answer:
Element x has an atomic number of 16, it is sulphur.
Element Y has an atomic number of 20, it is calcium.
i) Sulphur is in Group VI, period 3 in the modern periodic table,
whereas calcium is in Group II, period 4 of the modern periodic table.
ii) Ionic bonds will form between them. This is because metals and non-metals (Cacium and sulphur) usually form ionic compounds where between the ions are held by ionic bonds (which are transferred electrons so that both elements can attain a stable status).
iii) CaS
each Calcium atom can lose 2 electrons to attain 8 outermost shell electrons, while each sulphur atom can gain the 2 electrons to attain 8 outermost shell electrons, where they will most be stable (octet). Hence, the atomic ratio of Ca and S is 1:1.
Answer:
polarizability
Explanation:
It is called polarizability, the ease with which the electronic distribution of an atom or molecule can be distorted by the action of an external electric field.
Therefore, polarizability is the measure of the distortion capacity of the electronic cloud, within an atom or molecule, causing the formation of a momentary dipole.
An atom or a molecule can distort its electronic cloud in the presence of an ion or a dipole, causing an induced dipole
Answer:
the child would have a 1 in 2 chances of having a dominant gene
Explanation:
Parent 1 Parent 2
d d
r r
child
d
d= dominant
r= recessive
