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Worksheetsperiodic table
Total questions: 14
Worksheet time: 18mins
Across a period, atomic size __________
increase
decrease
constant
unchanged
Atomic size become smaller when
proton number increase
effective nuclear charge increase
no of shell increase
nucleus attraction towards valence electron weaker
Down a group, shielding effect (a)
Atoms / ions with the same no of electron are called
isotopes
isoelectron species
isoelectronic species
isomers
Size of cation is ____________ than its atom because ____________
larger, effective nuclear charge of cation is higher
smaller, effective nuclear charge of cation is higher
smaller, effective nuclear charge of cation is lower
larger, effective nuclear charge of cation is lower
Size of anion is _____________ than its atom because ________________________
smaller , mutual electron-electron repulsion increases
larger , effective nuclear charge of anion increases
larger , mutual electron-electron repulsion increases
smaller, effective nuclear charge of anion is lower
Si4+ is _______________ than Na+ because Si4+ has ________________
smaller, lower effective nuclear charge
smaller, higher effective nuclear charge
smaller, more proton number
larger, more proton number
Cl- is __________________ than S2- because _________________
larger, greater mutual electron repulsion
smaller, more proton number
smaller, higher effective nuclear charge
larger, lower effective nuclear charge
Generally, across a period, ionization energy (a)
Down a group, ionization energy (a)
Beryllium has higher first ionization energy than Boron because ___________________
the first electron is removed from partially filled orbital
the first electron is removed from half filled orbital
the first electron is removed from completely filled orbital
Be has smaller atomic radius
Nitrogen has higher first ionization energy than oxygen because ___________________
the first electron is removed from partially filled orbital
the first electron is removed from half filled orbital
the first electron is removed from completely filled orbital
Be has smaller atomic radius
MgO and Na2O is
acidic oxide
amphoteric oxide
basic oxide
neutral
Which of the following is acidic oxide
Cl2O7
P4O10
Al2O3
SiO2
